Image Quizzes

The history and findings in this case are suggestive of early-onset Alzheimer's disease (AD) with aphasia. 

AD is a neurodegenerative disorder characterized by cognitive and behavioral impairment that significantly interferes with a patient's social and occupational functioning. There is currently no cure for AD, which has a long preclinical period and a progressive course. Individuals with AD develop amyloid plaques in the hippocampus, a structure deep in the brain that helps to encode memories, and in other areas of the cerebral cortex that are involved in thinking and making decisions.

Patients with AD typically present with insidiously progressive memory loss; over the course of several years, other areas of cognition are impaired. Subsequent to memory loss, patients may also experience language disorders (eg, anomic aphasia or anomia) and impairment in visuospatial skills and executive functions. In many patients, slowly progressive behavioral changes are also observed.

AD is most prevalent in individuals older than 65 years; however, early‐onset AD (in individuals aged 60 years or older) can also occur. Early-onset AD shares the same essential neuropathological characteristics (ie, amyloid plaques and neurofibrillary tangles) as late-onset (65 years or older) AD, but it differs in several ways. For example, memory loss is an extremely common presenting symptom in late-onset AD, whereas nonamnestic presentation (ie, language, visuospatial, or executive impairment) is very rare, occurring in only about 5% of cases. Conversely, nonamnestic presentations may occur in 30%-40% of patients with early-onset AD. Frequent nonamnestic cognitive manifestations in patients with early-onset AD are those seen in mild to moderate AD, including visual agnosia (55.1%), aphasia (57.9%), and behavioral changes (61.7%). In addition, several studies have suggested that early-onset AD may have a more aggressive course than late-onset AD does, including faster cognitive and functional decline.

Presently, only symptomatic therapies are available for AD. The standard medical treatment for AD includes cholinesterase inhibitors and a partial N-methyl-D-aspartate antagonist. Newly approved antiamyloid therapies are also available for patients with mild cognitive impairment or mild dementia. These include aducanumab, a first-in-class amyloid beta–directed antibody that was approved in 2021, and lecanemab, another amyloid beta–directed antibody that was approved in 2023. Both aducanumab and lecanemab are recommended for the treatment of patients with mild cognitive impairment or mild dementia stage of disease, the population in which the safety and efficacy of these newer agents were demonstrated in clinical trials. 

Psychotropic agents may be used to treat the secondary symptoms of AD (eg, depression, agitation, aggression, hallucinations, delusions, sleep disorders), which can be problematic. Behavioral interventions ranging from patient-centered approaches to caregiver training may also be used to help manage cognitive and behavioral manifestations of AD, often in combination with pharmacologic interventions, such as anxiolytics for anxiety and agitation, neuroleptics for delusions or hallucinations, and antidepressants or mood stabilizers for mood disorders and specific manifestations (eg, episodes of anger or rage). Routine physical activity and exercise may affect AD progression and may possibly exert a protective effect on brain health. 

Jasvinder Chawla, MD, Professor of Neurology, Loyola University Medical Center, Maywood; Director, Clinical Neurophysiology Lab, Department of Neurology, Hines VA Hospital, Hines, IL.

Jasvinder Chawla, MD, has disclosed no relevant financial relationships.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

The history and findings in this case are suggestive of early-onset Alzheimer's disease (AD) with aphasia. 

AD is a neurodegenerative disorder characterized by cognitive and behavioral impairment that significantly interferes with a patient's social and occupational functioning. There is currently no cure for AD, which has a long preclinical period and a progressive course. Individuals with AD develop amyloid plaques in the hippocampus, a structure deep in the brain that helps to encode memories, and in other areas of the cerebral cortex that are involved in thinking and making decisions.

Patients with AD typically present with insidiously progressive memory loss; over the course of several years, other areas of cognition are impaired. Subsequent to memory loss, patients may also experience language disorders (eg, anomic aphasia or anomia) and impairment in visuospatial skills and executive functions. In many patients, slowly progressive behavioral changes are also observed.

AD is most prevalent in individuals older than 65 years; however, early‐onset AD (in individuals aged 60 years or older) can also occur. Early-onset AD shares the same essential neuropathological characteristics (ie, amyloid plaques and neurofibrillary tangles) as late-onset (65 years or older) AD, but it differs in several ways. For example, memory loss is an extremely common presenting symptom in late-onset AD, whereas nonamnestic presentation (ie, language, visuospatial, or executive impairment) is very rare, occurring in only about 5% of cases. Conversely, nonamnestic presentations may occur in 30%-40% of patients with early-onset AD. Frequent nonamnestic cognitive manifestations in patients with early-onset AD are those seen in mild to moderate AD, including visual agnosia (55.1%), aphasia (57.9%), and behavioral changes (61.7%). In addition, several studies have suggested that early-onset AD may have a more aggressive course than late-onset AD does, including faster cognitive and functional decline.

Presently, only symptomatic therapies are available for AD. The standard medical treatment for AD includes cholinesterase inhibitors and a partial N-methyl-D-aspartate antagonist. Newly approved antiamyloid therapies are also available for patients with mild cognitive impairment or mild dementia. These include aducanumab, a first-in-class amyloid beta–directed antibody that was approved in 2021, and lecanemab, another amyloid beta–directed antibody that was approved in 2023. Both aducanumab and lecanemab are recommended for the treatment of patients with mild cognitive impairment or mild dementia stage of disease, the population in which the safety and efficacy of these newer agents were demonstrated in clinical trials. 

Psychotropic agents may be used to treat the secondary symptoms of AD (eg, depression, agitation, aggression, hallucinations, delusions, sleep disorders), which can be problematic. Behavioral interventions ranging from patient-centered approaches to caregiver training may also be used to help manage cognitive and behavioral manifestations of AD, often in combination with pharmacologic interventions, such as anxiolytics for anxiety and agitation, neuroleptics for delusions or hallucinations, and antidepressants or mood stabilizers for mood disorders and specific manifestations (eg, episodes of anger or rage). Routine physical activity and exercise may affect AD progression and may possibly exert a protective effect on brain health. 

Jasvinder Chawla, MD, Professor of Neurology, Loyola University Medical Center, Maywood; Director, Clinical Neurophysiology Lab, Department of Neurology, Hines VA Hospital, Hines, IL.

Jasvinder Chawla, MD, has disclosed no relevant financial relationships.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

The history and findings in this case are suggestive of early-onset Alzheimer's disease (AD) with aphasia. 

AD is a neurodegenerative disorder characterized by cognitive and behavioral impairment that significantly interferes with a patient's social and occupational functioning. There is currently no cure for AD, which has a long preclinical period and a progressive course. Individuals with AD develop amyloid plaques in the hippocampus, a structure deep in the brain that helps to encode memories, and in other areas of the cerebral cortex that are involved in thinking and making decisions.

Patients with AD typically present with insidiously progressive memory loss; over the course of several years, other areas of cognition are impaired. Subsequent to memory loss, patients may also experience language disorders (eg, anomic aphasia or anomia) and impairment in visuospatial skills and executive functions. In many patients, slowly progressive behavioral changes are also observed.

AD is most prevalent in individuals older than 65 years; however, early‐onset AD (in individuals aged 60 years or older) can also occur. Early-onset AD shares the same essential neuropathological characteristics (ie, amyloid plaques and neurofibrillary tangles) as late-onset (65 years or older) AD, but it differs in several ways. For example, memory loss is an extremely common presenting symptom in late-onset AD, whereas nonamnestic presentation (ie, language, visuospatial, or executive impairment) is very rare, occurring in only about 5% of cases. Conversely, nonamnestic presentations may occur in 30%-40% of patients with early-onset AD. Frequent nonamnestic cognitive manifestations in patients with early-onset AD are those seen in mild to moderate AD, including visual agnosia (55.1%), aphasia (57.9%), and behavioral changes (61.7%). In addition, several studies have suggested that early-onset AD may have a more aggressive course than late-onset AD does, including faster cognitive and functional decline.

Presently, only symptomatic therapies are available for AD. The standard medical treatment for AD includes cholinesterase inhibitors and a partial N-methyl-D-aspartate antagonist. Newly approved antiamyloid therapies are also available for patients with mild cognitive impairment or mild dementia. These include aducanumab, a first-in-class amyloid beta–directed antibody that was approved in 2021, and lecanemab, another amyloid beta–directed antibody that was approved in 2023. Both aducanumab and lecanemab are recommended for the treatment of patients with mild cognitive impairment or mild dementia stage of disease, the population in which the safety and efficacy of these newer agents were demonstrated in clinical trials. 

Psychotropic agents may be used to treat the secondary symptoms of AD (eg, depression, agitation, aggression, hallucinations, delusions, sleep disorders), which can be problematic. Behavioral interventions ranging from patient-centered approaches to caregiver training may also be used to help manage cognitive and behavioral manifestations of AD, often in combination with pharmacologic interventions, such as anxiolytics for anxiety and agitation, neuroleptics for delusions or hallucinations, and antidepressants or mood stabilizers for mood disorders and specific manifestations (eg, episodes of anger or rage). Routine physical activity and exercise may affect AD progression and may possibly exert a protective effect on brain health. 

Jasvinder Chawla, MD, Professor of Neurology, Loyola University Medical Center, Maywood; Director, Clinical Neurophysiology Lab, Department of Neurology, Hines VA Hospital, Hines, IL.

Jasvinder Chawla, MD, has disclosed no relevant financial relationships.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

Atopic dermatitis (AD) is one of the most common chronic, inflammatory skin diseases encountered by dermatologists. AD is characterized by pruritus and a chronic course of exacerbations and remissions. AD is thought to involve the interplay of genetic predisposition, immune dysregulation, and environmental factors. It is also associated with other allergic conditions, including asthma. 

Although AD typically presents with pruritus as the hallmark symptom in all patients, the appearance of skin lesions may vary among different skin types. In individuals with light-colored skin, AD often appears as erythematous patches and plaques. It also more commonly affects the flexor surfaces of the skin. In individuals with darker skin tones, AD may more often result in follicularly centered papules, lichenification, and pigmentary changes. Lesions may also present on extensor surfaces rather than the typical flexure surfaces. Erythema in darker skin types may appear reddish-brown, have a violaceous hue, or be an ashen gray or darker brown color rather than bright red. Because erythema is more difficult to detect in darker skin types, clinicians may mistakenly minimize the severity of AD. 

Clinical severity may also differ between ethnicities. Black patients have an increased tendency toward hyperlinearity of the palms, periorbital dark circles, Dennie-Morgan lines, and diffuse xerosis. Compared with White patients, Black patients with AD are also more likely to develop prurigo nodularis and lichenification. In contrast, Asian patients with AD often experience psoriasiform features, with lesions having more well-defined borders and increased scaling and lichenification.

Beyond differences in clinical appearance, AD may appear molecularly and histologically distinct in ethnic skin. One study suggests that Black patients with AD may have decreased Th1 and Th17 but share similar upregulation of Th2 and Th22 as seen in White patients. Another study showed that Asian patients may have higher Th17 and Th22 and lower Th1/interferon compared with White patients. 

Regardless of skin type, treatment goals remain the same. Treatment goals aim to repair and improve the function of the skin barrier while preventing and managing flares. Clinical studies have shown that skincare regimens incorporating ceramide-containing moisturizers may improve AD by increasing the lipid content in the skin. This may offer clinical benefit in patients with skin of color. However, some treatments often used for AD may lead to other skin issues in skin in color. For example, long-term use of topical steroids may worsen hypopigmentation in darker skin types. Management strategies should take into account the unique clinical and genetic features of AD among different patient demographic groups. 

William D. James, MD, Professor, Department of Dermatology, University of Pennsylvania, Philadelphia.

Disclosure: William D. James, MD, has disclosed the following relevant financial relationships:
Received income in an amount equal to or greater than $250 from: Elsevier.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

Atopic dermatitis (AD) is one of the most common chronic, inflammatory skin diseases encountered by dermatologists. AD is characterized by pruritus and a chronic course of exacerbations and remissions. AD is thought to involve the interplay of genetic predisposition, immune dysregulation, and environmental factors. It is also associated with other allergic conditions, including asthma. 

Although AD typically presents with pruritus as the hallmark symptom in all patients, the appearance of skin lesions may vary among different skin types. In individuals with light-colored skin, AD often appears as erythematous patches and plaques. It also more commonly affects the flexor surfaces of the skin. In individuals with darker skin tones, AD may more often result in follicularly centered papules, lichenification, and pigmentary changes. Lesions may also present on extensor surfaces rather than the typical flexure surfaces. Erythema in darker skin types may appear reddish-brown, have a violaceous hue, or be an ashen gray or darker brown color rather than bright red. Because erythema is more difficult to detect in darker skin types, clinicians may mistakenly minimize the severity of AD. 

Clinical severity may also differ between ethnicities. Black patients have an increased tendency toward hyperlinearity of the palms, periorbital dark circles, Dennie-Morgan lines, and diffuse xerosis. Compared with White patients, Black patients with AD are also more likely to develop prurigo nodularis and lichenification. In contrast, Asian patients with AD often experience psoriasiform features, with lesions having more well-defined borders and increased scaling and lichenification.

Beyond differences in clinical appearance, AD may appear molecularly and histologically distinct in ethnic skin. One study suggests that Black patients with AD may have decreased Th1 and Th17 but share similar upregulation of Th2 and Th22 as seen in White patients. Another study showed that Asian patients may have higher Th17 and Th22 and lower Th1/interferon compared with White patients. 

Regardless of skin type, treatment goals remain the same. Treatment goals aim to repair and improve the function of the skin barrier while preventing and managing flares. Clinical studies have shown that skincare regimens incorporating ceramide-containing moisturizers may improve AD by increasing the lipid content in the skin. This may offer clinical benefit in patients with skin of color. However, some treatments often used for AD may lead to other skin issues in skin in color. For example, long-term use of topical steroids may worsen hypopigmentation in darker skin types. Management strategies should take into account the unique clinical and genetic features of AD among different patient demographic groups. 

William D. James, MD, Professor, Department of Dermatology, University of Pennsylvania, Philadelphia.

Disclosure: William D. James, MD, has disclosed the following relevant financial relationships:
Received income in an amount equal to or greater than $250 from: Elsevier.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

Atopic dermatitis (AD) is one of the most common chronic, inflammatory skin diseases encountered by dermatologists. AD is characterized by pruritus and a chronic course of exacerbations and remissions. AD is thought to involve the interplay of genetic predisposition, immune dysregulation, and environmental factors. It is also associated with other allergic conditions, including asthma. 

Although AD typically presents with pruritus as the hallmark symptom in all patients, the appearance of skin lesions may vary among different skin types. In individuals with light-colored skin, AD often appears as erythematous patches and plaques. It also more commonly affects the flexor surfaces of the skin. In individuals with darker skin tones, AD may more often result in follicularly centered papules, lichenification, and pigmentary changes. Lesions may also present on extensor surfaces rather than the typical flexure surfaces. Erythema in darker skin types may appear reddish-brown, have a violaceous hue, or be an ashen gray or darker brown color rather than bright red. Because erythema is more difficult to detect in darker skin types, clinicians may mistakenly minimize the severity of AD. 

Clinical severity may also differ between ethnicities. Black patients have an increased tendency toward hyperlinearity of the palms, periorbital dark circles, Dennie-Morgan lines, and diffuse xerosis. Compared with White patients, Black patients with AD are also more likely to develop prurigo nodularis and lichenification. In contrast, Asian patients with AD often experience psoriasiform features, with lesions having more well-defined borders and increased scaling and lichenification.

Beyond differences in clinical appearance, AD may appear molecularly and histologically distinct in ethnic skin. One study suggests that Black patients with AD may have decreased Th1 and Th17 but share similar upregulation of Th2 and Th22 as seen in White patients. Another study showed that Asian patients may have higher Th17 and Th22 and lower Th1/interferon compared with White patients. 

Regardless of skin type, treatment goals remain the same. Treatment goals aim to repair and improve the function of the skin barrier while preventing and managing flares. Clinical studies have shown that skincare regimens incorporating ceramide-containing moisturizers may improve AD by increasing the lipid content in the skin. This may offer clinical benefit in patients with skin of color. However, some treatments often used for AD may lead to other skin issues in skin in color. For example, long-term use of topical steroids may worsen hypopigmentation in darker skin types. Management strategies should take into account the unique clinical and genetic features of AD among different patient demographic groups. 

William D. James, MD, Professor, Department of Dermatology, University of Pennsylvania, Philadelphia.

Disclosure: William D. James, MD, has disclosed the following relevant financial relationships:
Received income in an amount equal to or greater than $250 from: Elsevier.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

The history and findings in this case are consistent with advanced infiltrating ductal carcinoma. 

Breast cancer is the most commonly diagnosed life-threatening cancer and the leading cause of cancer death among women worldwide. In the United States, it is estimated that 287,850 new cases of invasive breast cancer were diagnosed in 2022; in addition, 43,250 deaths because of breast cancer are expected to occur. 

Infiltrating ductal carcinoma is the most common type of breast tumor. It accounts for 75% of breast cancers and has a propensity to metastasize via lymphatic vessels. This lesion has no specific histologic characteristics apart from invasion through the basement membrane. This enables it to be differentiated from ductal carcinoma in situ, which remains inside the duct. 

All newly diagnosed cases of invasive breast cancers are tested for estrogen receptors, progesterone receptors, and HER2 status. The presence of estrogen and progesterone receptors is tested by immunohistochemistry, whereas HER2 can be tested by either immunohistochemistry or in situ hybridization (usually fluorescent or fluorescence in situ hybridization). Testing results have important treatment implications and prognostic significance. 

Surgical treatment of invasive breast cancer consists of either lumpectomy or total mastectomy, followed by radiation therapy. Surgical resection is performed in all patients with nonmetastatic disease. 

Systemic therapy options include endocrine therapy, cytotoxic chemotherapy, targeted therapy, and immunotherapy. The choice of systemic therapy is largely determined by subtype. For example, patients with hormone receptor–positive tumors receive endocrine therapy; a minority of these patients may receive chemotherapy as well. Patients with HER2-positive tumors receive HER2–targeted antibody or small-molecule inhibitor therapy combined with chemotherapy. For patients with triple-negative tumors, chemotherapy alone is often used; newer targeted therapies however may improve outcomes. In both the adjuvant and neoadjuvant setting, the primary goal of treatment is to eradicate or control undiscovered distant metastases. In the metastatic setting, the primary goal of treatment is to extend life and alleviate symptoms. 

Depending on the individual patient, systemic therapy may be used in the adjuvant or neoadjuvant setting. Systemic therapy is chosen according to breast cancer subtype and recurrence risk, with the treatment for low-risk patients being de-escalated, whereas high-risk patients receive aggressive systemic treatment. When systemic therapy is used in the neoadjuvant setting, treatment response is the most important factor for predicting outcomes and selecting the optimal adjuvant therapy. Novel biological markers enable the selection of appropriate targeted therapy, which can achieve optimal efficacy. 

Up-to-date, evidence-based recommendations for pre- and postoperative treatment of breast cancer, including advanced breast cancer, are provided by the National Comprehensive Cancer Network.

Karl J. D'Silva, MD, Clinical Assistant Professor, Department of Medicine, Tufts University School of Medicine, Boston; Medical Director, Department of Oncology and Hematology, Lahey Hospital and Medical Center, Peabody, Massachusetts.

Karl J. D'Silva, MD, has disclosed no relevant financial relationships.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

The history and findings in this case are consistent with advanced infiltrating ductal carcinoma. 

Breast cancer is the most commonly diagnosed life-threatening cancer and the leading cause of cancer death among women worldwide. In the United States, it is estimated that 287,850 new cases of invasive breast cancer were diagnosed in 2022; in addition, 43,250 deaths because of breast cancer are expected to occur. 

Infiltrating ductal carcinoma is the most common type of breast tumor. It accounts for 75% of breast cancers and has a propensity to metastasize via lymphatic vessels. This lesion has no specific histologic characteristics apart from invasion through the basement membrane. This enables it to be differentiated from ductal carcinoma in situ, which remains inside the duct. 

All newly diagnosed cases of invasive breast cancers are tested for estrogen receptors, progesterone receptors, and HER2 status. The presence of estrogen and progesterone receptors is tested by immunohistochemistry, whereas HER2 can be tested by either immunohistochemistry or in situ hybridization (usually fluorescent or fluorescence in situ hybridization). Testing results have important treatment implications and prognostic significance. 

Surgical treatment of invasive breast cancer consists of either lumpectomy or total mastectomy, followed by radiation therapy. Surgical resection is performed in all patients with nonmetastatic disease. 

Systemic therapy options include endocrine therapy, cytotoxic chemotherapy, targeted therapy, and immunotherapy. The choice of systemic therapy is largely determined by subtype. For example, patients with hormone receptor–positive tumors receive endocrine therapy; a minority of these patients may receive chemotherapy as well. Patients with HER2-positive tumors receive HER2–targeted antibody or small-molecule inhibitor therapy combined with chemotherapy. For patients with triple-negative tumors, chemotherapy alone is often used; newer targeted therapies however may improve outcomes. In both the adjuvant and neoadjuvant setting, the primary goal of treatment is to eradicate or control undiscovered distant metastases. In the metastatic setting, the primary goal of treatment is to extend life and alleviate symptoms. 

Depending on the individual patient, systemic therapy may be used in the adjuvant or neoadjuvant setting. Systemic therapy is chosen according to breast cancer subtype and recurrence risk, with the treatment for low-risk patients being de-escalated, whereas high-risk patients receive aggressive systemic treatment. When systemic therapy is used in the neoadjuvant setting, treatment response is the most important factor for predicting outcomes and selecting the optimal adjuvant therapy. Novel biological markers enable the selection of appropriate targeted therapy, which can achieve optimal efficacy. 

Up-to-date, evidence-based recommendations for pre- and postoperative treatment of breast cancer, including advanced breast cancer, are provided by the National Comprehensive Cancer Network.

Karl J. D'Silva, MD, Clinical Assistant Professor, Department of Medicine, Tufts University School of Medicine, Boston; Medical Director, Department of Oncology and Hematology, Lahey Hospital and Medical Center, Peabody, Massachusetts.

Karl J. D'Silva, MD, has disclosed no relevant financial relationships.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

The history and findings in this case are consistent with advanced infiltrating ductal carcinoma. 

Breast cancer is the most commonly diagnosed life-threatening cancer and the leading cause of cancer death among women worldwide. In the United States, it is estimated that 287,850 new cases of invasive breast cancer were diagnosed in 2022; in addition, 43,250 deaths because of breast cancer are expected to occur. 

Infiltrating ductal carcinoma is the most common type of breast tumor. It accounts for 75% of breast cancers and has a propensity to metastasize via lymphatic vessels. This lesion has no specific histologic characteristics apart from invasion through the basement membrane. This enables it to be differentiated from ductal carcinoma in situ, which remains inside the duct. 

All newly diagnosed cases of invasive breast cancers are tested for estrogen receptors, progesterone receptors, and HER2 status. The presence of estrogen and progesterone receptors is tested by immunohistochemistry, whereas HER2 can be tested by either immunohistochemistry or in situ hybridization (usually fluorescent or fluorescence in situ hybridization). Testing results have important treatment implications and prognostic significance. 

Surgical treatment of invasive breast cancer consists of either lumpectomy or total mastectomy, followed by radiation therapy. Surgical resection is performed in all patients with nonmetastatic disease. 

Systemic therapy options include endocrine therapy, cytotoxic chemotherapy, targeted therapy, and immunotherapy. The choice of systemic therapy is largely determined by subtype. For example, patients with hormone receptor–positive tumors receive endocrine therapy; a minority of these patients may receive chemotherapy as well. Patients with HER2-positive tumors receive HER2–targeted antibody or small-molecule inhibitor therapy combined with chemotherapy. For patients with triple-negative tumors, chemotherapy alone is often used; newer targeted therapies however may improve outcomes. In both the adjuvant and neoadjuvant setting, the primary goal of treatment is to eradicate or control undiscovered distant metastases. In the metastatic setting, the primary goal of treatment is to extend life and alleviate symptoms. 

Depending on the individual patient, systemic therapy may be used in the adjuvant or neoadjuvant setting. Systemic therapy is chosen according to breast cancer subtype and recurrence risk, with the treatment for low-risk patients being de-escalated, whereas high-risk patients receive aggressive systemic treatment. When systemic therapy is used in the neoadjuvant setting, treatment response is the most important factor for predicting outcomes and selecting the optimal adjuvant therapy. Novel biological markers enable the selection of appropriate targeted therapy, which can achieve optimal efficacy. 

Up-to-date, evidence-based recommendations for pre- and postoperative treatment of breast cancer, including advanced breast cancer, are provided by the National Comprehensive Cancer Network.

Karl J. D'Silva, MD, Clinical Assistant Professor, Department of Medicine, Tufts University School of Medicine, Boston; Medical Director, Department of Oncology and Hematology, Lahey Hospital and Medical Center, Peabody, Massachusetts.

Karl J. D'Silva, MD, has disclosed no relevant financial relationships.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

Gestational diabetes is a significant health problem worldwide that is associated with immediate and lifelong consequences for the affected woman and her infant. Gestational diabetes increases the risk for pregnancy-related complications, such as induced labor, cesarean delivery, and preeclampsia. There is also an increased risk for neonatal complications, including large-for-gestational-age birth weight, shoulder dystocia, birth injuries, lung disease, jaundice, and hypoglycemia. Regardless of birth weight, neonates born to mothers with gestational diabetes have greater adiposity than do neonates born to mothers without obesity and with normal glucose tolerance, and they have a predilection toward obesity and obesity-related metabolic disorders, including T2D in childhood and adulthood. Similarly, women who develop gestational diabetes have an increased lifetime risk for T2D as well as an increased risk for cardiovascular disease even if they do not progress to T2D.

According to the International Diabetes Federation, 1 in 6 pregnancies is affected by gestational diabetes. Risk factors include higher age and BMI, previous history of gestational diabetes, a family history of T2D, and polycystic ovarian syndrome. Patients may have few, if any, symptoms of gestational diabetes, or they may mistake their symptoms for the normal side effects of pregnancy. Potential symptoms include blurred vision, tingling or numbness in the hands and/or feet, excessive thirst, frequent urination, sores that heal slowly, and excessive fatigue. 

The American Diabetes Association (ADA) states that the treatment of gestational diabetes should include medical nutrition therapy, physical activity, and weight management, depending on pregestational weight. Glucose monitoring is essential: Patients should aim for fasting glucose < 95 mg/dL (5.3 mmol/L) and either 1-hour postprandial glucose < 140 mg/dL (7.8 mmol/L) or 2-hour postprandial glucose < 120 mg/dL (6.7 mmol/L). According to the ADA, insulin should be added to lifestyle modifications if needed to achieve glycemic targets. Metformin and glyburide are not recommended as first-line agents because both cross the placenta to the fetus. Long-term safety data are not available for the use of other oral and noninsulin injectable glucose-lowering medications during pregnancy. 

Courtney Whittle, MD, MSW, Diplomate of ABOM, Pediatric Lead, Obesity Champion, TSPMG, Weight A Minute Clinic, Atlanta, Georgia.

Courtney Whittle, MD, MSW, Diplomate of ABOM, has disclosed no relevant financial relationships.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

Gestational diabetes is a significant health problem worldwide that is associated with immediate and lifelong consequences for the affected woman and her infant. Gestational diabetes increases the risk for pregnancy-related complications, such as induced labor, cesarean delivery, and preeclampsia. There is also an increased risk for neonatal complications, including large-for-gestational-age birth weight, shoulder dystocia, birth injuries, lung disease, jaundice, and hypoglycemia. Regardless of birth weight, neonates born to mothers with gestational diabetes have greater adiposity than do neonates born to mothers without obesity and with normal glucose tolerance, and they have a predilection toward obesity and obesity-related metabolic disorders, including T2D in childhood and adulthood. Similarly, women who develop gestational diabetes have an increased lifetime risk for T2D as well as an increased risk for cardiovascular disease even if they do not progress to T2D.

According to the International Diabetes Federation, 1 in 6 pregnancies is affected by gestational diabetes. Risk factors include higher age and BMI, previous history of gestational diabetes, a family history of T2D, and polycystic ovarian syndrome. Patients may have few, if any, symptoms of gestational diabetes, or they may mistake their symptoms for the normal side effects of pregnancy. Potential symptoms include blurred vision, tingling or numbness in the hands and/or feet, excessive thirst, frequent urination, sores that heal slowly, and excessive fatigue. 

The American Diabetes Association (ADA) states that the treatment of gestational diabetes should include medical nutrition therapy, physical activity, and weight management, depending on pregestational weight. Glucose monitoring is essential: Patients should aim for fasting glucose < 95 mg/dL (5.3 mmol/L) and either 1-hour postprandial glucose < 140 mg/dL (7.8 mmol/L) or 2-hour postprandial glucose < 120 mg/dL (6.7 mmol/L). According to the ADA, insulin should be added to lifestyle modifications if needed to achieve glycemic targets. Metformin and glyburide are not recommended as first-line agents because both cross the placenta to the fetus. Long-term safety data are not available for the use of other oral and noninsulin injectable glucose-lowering medications during pregnancy. 

Courtney Whittle, MD, MSW, Diplomate of ABOM, Pediatric Lead, Obesity Champion, TSPMG, Weight A Minute Clinic, Atlanta, Georgia.

Courtney Whittle, MD, MSW, Diplomate of ABOM, has disclosed no relevant financial relationships.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

Gestational diabetes is a significant health problem worldwide that is associated with immediate and lifelong consequences for the affected woman and her infant. Gestational diabetes increases the risk for pregnancy-related complications, such as induced labor, cesarean delivery, and preeclampsia. There is also an increased risk for neonatal complications, including large-for-gestational-age birth weight, shoulder dystocia, birth injuries, lung disease, jaundice, and hypoglycemia. Regardless of birth weight, neonates born to mothers with gestational diabetes have greater adiposity than do neonates born to mothers without obesity and with normal glucose tolerance, and they have a predilection toward obesity and obesity-related metabolic disorders, including T2D in childhood and adulthood. Similarly, women who develop gestational diabetes have an increased lifetime risk for T2D as well as an increased risk for cardiovascular disease even if they do not progress to T2D.

According to the International Diabetes Federation, 1 in 6 pregnancies is affected by gestational diabetes. Risk factors include higher age and BMI, previous history of gestational diabetes, a family history of T2D, and polycystic ovarian syndrome. Patients may have few, if any, symptoms of gestational diabetes, or they may mistake their symptoms for the normal side effects of pregnancy. Potential symptoms include blurred vision, tingling or numbness in the hands and/or feet, excessive thirst, frequent urination, sores that heal slowly, and excessive fatigue. 

The American Diabetes Association (ADA) states that the treatment of gestational diabetes should include medical nutrition therapy, physical activity, and weight management, depending on pregestational weight. Glucose monitoring is essential: Patients should aim for fasting glucose < 95 mg/dL (5.3 mmol/L) and either 1-hour postprandial glucose < 140 mg/dL (7.8 mmol/L) or 2-hour postprandial glucose < 120 mg/dL (6.7 mmol/L). According to the ADA, insulin should be added to lifestyle modifications if needed to achieve glycemic targets. Metformin and glyburide are not recommended as first-line agents because both cross the placenta to the fetus. Long-term safety data are not available for the use of other oral and noninsulin injectable glucose-lowering medications during pregnancy. 

Courtney Whittle, MD, MSW, Diplomate of ABOM, Pediatric Lead, Obesity Champion, TSPMG, Weight A Minute Clinic, Atlanta, Georgia.

Courtney Whittle, MD, MSW, Diplomate of ABOM, has disclosed no relevant financial relationships.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

The history and findings in this case are suggestive of breast cancer with metastatic spread to the chest wall and lungs. 

Globally, breast cancer is the most frequently diagnosed life-threatening cancer and the leading cause of cancer death among women. In the United States, an estimated 287,850 new cases of invasive breast cancer will be diagnosed in 2022; in addition, 43,250 deaths because of breast cancer are expected to occur. Despite advances in adjuvant treatment strategies, such as tamoxifen for patients with ER-positive breast cancer, many patients with early breast cancer still experience disease recurrence after primary therapy. Because of its systemic nature and inevitable resistance to therapy, metastatic breast cancer is largely incurable.

Approximately 5%-35% of patients with breast cancer develop locoregional recurrence either alone or with distant metastases. The lung is a frequent site of breast cancer metastasis. In addition, approximately 11% of patients have persistent chest wall progression. Recurrent breast cancer in the chest wall is considered a marker of poor prognosis and is normally accompanied by or a precursor to distant metastases. 

Risk factors for chest wall recurrence include primary tumor size, primary stage, and lymph node involvement; in addition, the risk is increased in patients aged 40 years or younger and in those with gross multifocal or multicentric disease. Histopathological risk factors include positive margin status, DCIS, extensive intraductal component, high grade, lymphovascular invasion, tumor oncogene, and tumor suppressor gene expression (eg, p53 and HER2), and ER status. 

According to the National Comprehensive Cancer Network (NCCN) 2022 guidelines, the staging evaluation of patients who present with recurrent or stage IV breast cancer should include:

•    History and physical exam
•    Complete blood count and liver function tests
•    Chest diagnostic CT
•    Bone scan
•    Radiographs of any long or weight-bearing bones that are painful or appear abnormal on bone scan
•    Diagnostic CT of the abdomen (with or without diagnostic CT of the pelvis) or MRI of the abdomen
•    Biopsy documentation of first recurrence, when possible

The use of sodium fluoride PET or PET-CT for the evaluation of patients with recurrent disease is largely discouraged. 

Determination of hormone receptor status (ER and progesterone receptor [PR]) as well as HER2 status should be repeated because ER and PR assays may be falsely negative or falsely positive and there may be discordance between the primary and metastatic tumors.

In the metastatic setting, genetic testing results may have therapeutic implications; specifically, germline mutations in BRCA1/BRCA2 have demonstrated clinical utility and therapeutic impact. Thus, the NCCN panel recommends that germline BRCA1/BRCA2 mutations be evaluated in all patients with recurrent or metastatic breast cancer to identify candidates for appropriate targeted therapies (eg, poly adenosine diphosphate ribose polymerase–inhibitor therapy).

In patients with recurrence of breast cancer to the chest wall, complete chest wall resection and appropriate reconstruction may prolong overall survival, although appropriate patient selection is essential for optimal outcomes. Patients with tumors that display a more aggressive phenotype (eg, triple-negative or HER2-positive disease) may not benefit from this approach and supportive care may be more appropriate.

Avan J. Armaghani, MD, Assistant Member, Department of Breast Oncology, Moffitt Cancer Center, University of South Florida, Tampa, FL. 

Avan J. Armaghani, MD, has disclosed no relevant financial relationships.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

The history and findings in this case are suggestive of breast cancer with metastatic spread to the chest wall and lungs. 

Globally, breast cancer is the most frequently diagnosed life-threatening cancer and the leading cause of cancer death among women. In the United States, an estimated 287,850 new cases of invasive breast cancer will be diagnosed in 2022; in addition, 43,250 deaths because of breast cancer are expected to occur. Despite advances in adjuvant treatment strategies, such as tamoxifen for patients with ER-positive breast cancer, many patients with early breast cancer still experience disease recurrence after primary therapy. Because of its systemic nature and inevitable resistance to therapy, metastatic breast cancer is largely incurable.

Approximately 5%-35% of patients with breast cancer develop locoregional recurrence either alone or with distant metastases. The lung is a frequent site of breast cancer metastasis. In addition, approximately 11% of patients have persistent chest wall progression. Recurrent breast cancer in the chest wall is considered a marker of poor prognosis and is normally accompanied by or a precursor to distant metastases. 

Risk factors for chest wall recurrence include primary tumor size, primary stage, and lymph node involvement; in addition, the risk is increased in patients aged 40 years or younger and in those with gross multifocal or multicentric disease. Histopathological risk factors include positive margin status, DCIS, extensive intraductal component, high grade, lymphovascular invasion, tumor oncogene, and tumor suppressor gene expression (eg, p53 and HER2), and ER status. 

According to the National Comprehensive Cancer Network (NCCN) 2022 guidelines, the staging evaluation of patients who present with recurrent or stage IV breast cancer should include:

•    History and physical exam
•    Complete blood count and liver function tests
•    Chest diagnostic CT
•    Bone scan
•    Radiographs of any long or weight-bearing bones that are painful or appear abnormal on bone scan
•    Diagnostic CT of the abdomen (with or without diagnostic CT of the pelvis) or MRI of the abdomen
•    Biopsy documentation of first recurrence, when possible

The use of sodium fluoride PET or PET-CT for the evaluation of patients with recurrent disease is largely discouraged. 

Determination of hormone receptor status (ER and progesterone receptor [PR]) as well as HER2 status should be repeated because ER and PR assays may be falsely negative or falsely positive and there may be discordance between the primary and metastatic tumors.

In the metastatic setting, genetic testing results may have therapeutic implications; specifically, germline mutations in BRCA1/BRCA2 have demonstrated clinical utility and therapeutic impact. Thus, the NCCN panel recommends that germline BRCA1/BRCA2 mutations be evaluated in all patients with recurrent or metastatic breast cancer to identify candidates for appropriate targeted therapies (eg, poly adenosine diphosphate ribose polymerase–inhibitor therapy).

In patients with recurrence of breast cancer to the chest wall, complete chest wall resection and appropriate reconstruction may prolong overall survival, although appropriate patient selection is essential for optimal outcomes. Patients with tumors that display a more aggressive phenotype (eg, triple-negative or HER2-positive disease) may not benefit from this approach and supportive care may be more appropriate.

Avan J. Armaghani, MD, Assistant Member, Department of Breast Oncology, Moffitt Cancer Center, University of South Florida, Tampa, FL. 

Avan J. Armaghani, MD, has disclosed no relevant financial relationships.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

The history and findings in this case are suggestive of breast cancer with metastatic spread to the chest wall and lungs. 

Globally, breast cancer is the most frequently diagnosed life-threatening cancer and the leading cause of cancer death among women. In the United States, an estimated 287,850 new cases of invasive breast cancer will be diagnosed in 2022; in addition, 43,250 deaths because of breast cancer are expected to occur. Despite advances in adjuvant treatment strategies, such as tamoxifen for patients with ER-positive breast cancer, many patients with early breast cancer still experience disease recurrence after primary therapy. Because of its systemic nature and inevitable resistance to therapy, metastatic breast cancer is largely incurable.

Approximately 5%-35% of patients with breast cancer develop locoregional recurrence either alone or with distant metastases. The lung is a frequent site of breast cancer metastasis. In addition, approximately 11% of patients have persistent chest wall progression. Recurrent breast cancer in the chest wall is considered a marker of poor prognosis and is normally accompanied by or a precursor to distant metastases. 

Risk factors for chest wall recurrence include primary tumor size, primary stage, and lymph node involvement; in addition, the risk is increased in patients aged 40 years or younger and in those with gross multifocal or multicentric disease. Histopathological risk factors include positive margin status, DCIS, extensive intraductal component, high grade, lymphovascular invasion, tumor oncogene, and tumor suppressor gene expression (eg, p53 and HER2), and ER status. 

According to the National Comprehensive Cancer Network (NCCN) 2022 guidelines, the staging evaluation of patients who present with recurrent or stage IV breast cancer should include:

•    History and physical exam
•    Complete blood count and liver function tests
•    Chest diagnostic CT
•    Bone scan
•    Radiographs of any long or weight-bearing bones that are painful or appear abnormal on bone scan
•    Diagnostic CT of the abdomen (with or without diagnostic CT of the pelvis) or MRI of the abdomen
•    Biopsy documentation of first recurrence, when possible

The use of sodium fluoride PET or PET-CT for the evaluation of patients with recurrent disease is largely discouraged. 

Determination of hormone receptor status (ER and progesterone receptor [PR]) as well as HER2 status should be repeated because ER and PR assays may be falsely negative or falsely positive and there may be discordance between the primary and metastatic tumors.

In the metastatic setting, genetic testing results may have therapeutic implications; specifically, germline mutations in BRCA1/BRCA2 have demonstrated clinical utility and therapeutic impact. Thus, the NCCN panel recommends that germline BRCA1/BRCA2 mutations be evaluated in all patients with recurrent or metastatic breast cancer to identify candidates for appropriate targeted therapies (eg, poly adenosine diphosphate ribose polymerase–inhibitor therapy).

In patients with recurrence of breast cancer to the chest wall, complete chest wall resection and appropriate reconstruction may prolong overall survival, although appropriate patient selection is essential for optimal outcomes. Patients with tumors that display a more aggressive phenotype (eg, triple-negative or HER2-positive disease) may not benefit from this approach and supportive care may be more appropriate.

Avan J. Armaghani, MD, Assistant Member, Department of Breast Oncology, Moffitt Cancer Center, University of South Florida, Tampa, FL. 

Avan J. Armaghani, MD, has disclosed no relevant financial relationships.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

This patient's clinical presentation is consistent with a diagnosis of metastatic invasive lobular carcinoma, with nodal involvement. 

Breast cancer is one of the most frequently diagnosed cancers worldwide. In Western countries, 1 in 8 women will be diagnosed with breast cancer at some point in their lives. Various histologic subtypes with specific clinical characteristics exist. Invasive lobular carcinoma (ILC) is the second most common subtype, accounting for an estimated 10%-15% of breast cancers. Over the past two decades, a significant increase has been observed in the incidence of ILC, particularly among postmenopausal women. Improved diagnostic techniques and the use of hormone replacement therapy may account for this increased incidence. White women have the highest incidence of ILC; however, compared with White women and women of other races, Black women experience the worst 5-year overall survival from ILC.

ILC arises in the mammary ducts (lobules) of the breast. Women with ILC are typically slightly older than women with invasive breast cancer of no special type at diagnosis (mean age 63.4 vs 59.5 years, respectively). Risk factors for ILC may include early menarche, use of progesterone-based hormone replacement therapy, late age at first live birth, and alcohol consumption. 

In most cases, ILC does not form a discrete palpable mass until it has reached an advanced stage, making it more difficult to detect through physical examination or imaging. Patients often present with a large tumor and with nodal involvement. A slight thickening of the nipple, an exudative scab on the skin, or other changes in the skin, such as flushing or swelling, may be seen in patients presenting with advanced disease. Additionally, ILC tumors are often bilateral and multifocal. 

ILC is predominantly a histopathologic diagnosis based on standard hematoxylin and eosin staining. Histologically, ILC is characterized by a proliferation of small cells that lack cohesion. These cells are often dispersed individually through a fibrous connective tissue; alternatively, they may be organized in single-file linear cords invading the stroma. A concentric pattern around normal ducts is often seen in the infiltrating cords. There is usually little host reaction of the background architecture. Round or notched ovoid nuclei are seen in the neoplastic cells, along with a thin rim of cytoplasm. Occasionally, an intracytoplasmic lumen is present and may harbor a central mucoid inclusion. Very few or no mitoses are seen.

Several variants of ILC exist, all of which lack cell-to-cell cohesion. These include:

•    Solid type
•    Pleomorphic lobular carcinoma
•    Tubulo-lobular variant
•    Alveolar variant
•    Mixed type

Complete loss of E-cadherin expression occurs in most ILCs, which can help to differentiate it from invasive ductal cancers or ductal carcinomas in situ. Diffuse cortical thickening without hilar mass effect is often seen in nodal metastases associated with ILC. 

Most classic ILCs are estrogen receptor– and progesterone receptor–positive. Conversely, HER2 overexpression and amplification rarely occurs in ILC. 

Late relapses more than 10 years after remission may occur. In addition to frequent bone and liver metastasis, ILC is associated with metastatic spread to unusual sites, including the peritoneum, gastrointestinal tract, urinary tract, leptomeninges, skin, orbit, and ovaries. 

Mastectomy is often indicated in ILC. In the neoadjuvant setting, ILC is associated with low pathologic complete response rates. Endocrine therapy in the neoadjuvant setting is an emerging approach for some patients with ILC. According to 2022 National Comprehensive Cancer Network guidelines, adjuvant chemotherapy followed by endocrine therapy or endocrine therapy alone should be considered for pre- and postmenopausal patients with ILC.

Avan J. Armaghani, MD, Assistant Member, Department of Breast Oncology, Moffitt Cancer Center, University of South Florida, Tampa, FL.
 
Avan J. Armaghani, MD, has disclosed no relevant financial relationships.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

This patient's clinical presentation is consistent with a diagnosis of metastatic invasive lobular carcinoma, with nodal involvement. 

Breast cancer is one of the most frequently diagnosed cancers worldwide. In Western countries, 1 in 8 women will be diagnosed with breast cancer at some point in their lives. Various histologic subtypes with specific clinical characteristics exist. Invasive lobular carcinoma (ILC) is the second most common subtype, accounting for an estimated 10%-15% of breast cancers. Over the past two decades, a significant increase has been observed in the incidence of ILC, particularly among postmenopausal women. Improved diagnostic techniques and the use of hormone replacement therapy may account for this increased incidence. White women have the highest incidence of ILC; however, compared with White women and women of other races, Black women experience the worst 5-year overall survival from ILC.

ILC arises in the mammary ducts (lobules) of the breast. Women with ILC are typically slightly older than women with invasive breast cancer of no special type at diagnosis (mean age 63.4 vs 59.5 years, respectively). Risk factors for ILC may include early menarche, use of progesterone-based hormone replacement therapy, late age at first live birth, and alcohol consumption. 

In most cases, ILC does not form a discrete palpable mass until it has reached an advanced stage, making it more difficult to detect through physical examination or imaging. Patients often present with a large tumor and with nodal involvement. A slight thickening of the nipple, an exudative scab on the skin, or other changes in the skin, such as flushing or swelling, may be seen in patients presenting with advanced disease. Additionally, ILC tumors are often bilateral and multifocal. 

ILC is predominantly a histopathologic diagnosis based on standard hematoxylin and eosin staining. Histologically, ILC is characterized by a proliferation of small cells that lack cohesion. These cells are often dispersed individually through a fibrous connective tissue; alternatively, they may be organized in single-file linear cords invading the stroma. A concentric pattern around normal ducts is often seen in the infiltrating cords. There is usually little host reaction of the background architecture. Round or notched ovoid nuclei are seen in the neoplastic cells, along with a thin rim of cytoplasm. Occasionally, an intracytoplasmic lumen is present and may harbor a central mucoid inclusion. Very few or no mitoses are seen.

Several variants of ILC exist, all of which lack cell-to-cell cohesion. These include:

•    Solid type
•    Pleomorphic lobular carcinoma
•    Tubulo-lobular variant
•    Alveolar variant
•    Mixed type

Complete loss of E-cadherin expression occurs in most ILCs, which can help to differentiate it from invasive ductal cancers or ductal carcinomas in situ. Diffuse cortical thickening without hilar mass effect is often seen in nodal metastases associated with ILC. 

Most classic ILCs are estrogen receptor– and progesterone receptor–positive. Conversely, HER2 overexpression and amplification rarely occurs in ILC. 

Late relapses more than 10 years after remission may occur. In addition to frequent bone and liver metastasis, ILC is associated with metastatic spread to unusual sites, including the peritoneum, gastrointestinal tract, urinary tract, leptomeninges, skin, orbit, and ovaries. 

Mastectomy is often indicated in ILC. In the neoadjuvant setting, ILC is associated with low pathologic complete response rates. Endocrine therapy in the neoadjuvant setting is an emerging approach for some patients with ILC. According to 2022 National Comprehensive Cancer Network guidelines, adjuvant chemotherapy followed by endocrine therapy or endocrine therapy alone should be considered for pre- and postmenopausal patients with ILC.

Avan J. Armaghani, MD, Assistant Member, Department of Breast Oncology, Moffitt Cancer Center, University of South Florida, Tampa, FL.
 
Avan J. Armaghani, MD, has disclosed no relevant financial relationships.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

This patient's clinical presentation is consistent with a diagnosis of metastatic invasive lobular carcinoma, with nodal involvement. 

Breast cancer is one of the most frequently diagnosed cancers worldwide. In Western countries, 1 in 8 women will be diagnosed with breast cancer at some point in their lives. Various histologic subtypes with specific clinical characteristics exist. Invasive lobular carcinoma (ILC) is the second most common subtype, accounting for an estimated 10%-15% of breast cancers. Over the past two decades, a significant increase has been observed in the incidence of ILC, particularly among postmenopausal women. Improved diagnostic techniques and the use of hormone replacement therapy may account for this increased incidence. White women have the highest incidence of ILC; however, compared with White women and women of other races, Black women experience the worst 5-year overall survival from ILC.

ILC arises in the mammary ducts (lobules) of the breast. Women with ILC are typically slightly older than women with invasive breast cancer of no special type at diagnosis (mean age 63.4 vs 59.5 years, respectively). Risk factors for ILC may include early menarche, use of progesterone-based hormone replacement therapy, late age at first live birth, and alcohol consumption. 

In most cases, ILC does not form a discrete palpable mass until it has reached an advanced stage, making it more difficult to detect through physical examination or imaging. Patients often present with a large tumor and with nodal involvement. A slight thickening of the nipple, an exudative scab on the skin, or other changes in the skin, such as flushing or swelling, may be seen in patients presenting with advanced disease. Additionally, ILC tumors are often bilateral and multifocal. 

ILC is predominantly a histopathologic diagnosis based on standard hematoxylin and eosin staining. Histologically, ILC is characterized by a proliferation of small cells that lack cohesion. These cells are often dispersed individually through a fibrous connective tissue; alternatively, they may be organized in single-file linear cords invading the stroma. A concentric pattern around normal ducts is often seen in the infiltrating cords. There is usually little host reaction of the background architecture. Round or notched ovoid nuclei are seen in the neoplastic cells, along with a thin rim of cytoplasm. Occasionally, an intracytoplasmic lumen is present and may harbor a central mucoid inclusion. Very few or no mitoses are seen.

Several variants of ILC exist, all of which lack cell-to-cell cohesion. These include:

•    Solid type
•    Pleomorphic lobular carcinoma
•    Tubulo-lobular variant
•    Alveolar variant
•    Mixed type

Complete loss of E-cadherin expression occurs in most ILCs, which can help to differentiate it from invasive ductal cancers or ductal carcinomas in situ. Diffuse cortical thickening without hilar mass effect is often seen in nodal metastases associated with ILC. 

Most classic ILCs are estrogen receptor– and progesterone receptor–positive. Conversely, HER2 overexpression and amplification rarely occurs in ILC. 

Late relapses more than 10 years after remission may occur. In addition to frequent bone and liver metastasis, ILC is associated with metastatic spread to unusual sites, including the peritoneum, gastrointestinal tract, urinary tract, leptomeninges, skin, orbit, and ovaries. 

Mastectomy is often indicated in ILC. In the neoadjuvant setting, ILC is associated with low pathologic complete response rates. Endocrine therapy in the neoadjuvant setting is an emerging approach for some patients with ILC. According to 2022 National Comprehensive Cancer Network guidelines, adjuvant chemotherapy followed by endocrine therapy or endocrine therapy alone should be considered for pre- and postmenopausal patients with ILC.

Avan J. Armaghani, MD, Assistant Member, Department of Breast Oncology, Moffitt Cancer Center, University of South Florida, Tampa, FL.
 
Avan J. Armaghani, MD, has disclosed no relevant financial relationships.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

This patient's clinical presentation of weight gain and associated symptoms are most closely related to a diagnosis of obesity. In addition, her laboratory findings are consistent with common obesity complications, including prediabetes and dyslipidemia, and her blood pressure is borderline high. 

Obesity is a chronic, multifactorial disease with a complex pathogenesis comprising of genetic, biological, psychosocial, socioeconomic, and environmental factors. It is a heterogeneous disease characterized by a dysfunction of the normal pathways and mechanisms that are involved in body fat regulation (often referred to as weight regulation), which may lead to variable presentation and complications. According to the US Centers for Disease Control and Prevention, the highest age-adjusted prevalence of obesity is seen in non-Hispanic Black adults (49.9%), followed by Hispanic adults (45.6%), non-Hispanic White adults (41.4%), and non-Hispanic Asian adults (16.1%).

Epidemiologic studies have defined obesity as a BMI > 30, which is then subclassified into class 1 (BMI of 30-34.9), class 2 (BMI of 35-39.9), or class 3 (BMI ≥ 40) obesity. Though BMI is widely used to evaluate and classify obesity, it mainly represents general adiposity and can be confounded by excessive muscle mass or frailty. Guidelines from the American Diabetes Association state that in addition to weight and BMI, clinicians should consider weight distribution (including predisposition for central/visceral adipose deposition) and weight gain pattern and trajectory because these can help guide risk stratification and treatment options.

Increasingly, evidence supports visceral adiposity, or abdominal obesity, as a marker of cardiovascular risk. Abdominal obesity has been shown to be a strong independent predictor of mortality. On its own, BMI is an insufficient biomarker of abdominal obesity. Not all individuals with obesity have a central distribution of their weight; some individuals may have central obesity without meeting the criteria for the BMI definition of obesity. This can lead to misclassification and underdiagnosis of health risks in clinical practice. Consequently, numerous organizations and expert panels have recommended that waist circumference be measured along with BMI, specifically when the BMI < 35. Measurement of both BMI and waist circumference provides valuable opportunities to counsel patients regarding their risk for cardiovascular disease and other complications of obesity. Waist-to-hip ratio has also been shown to be a stronger predictor for mortality compared with BMI; however, it is rarely measured in clinical practice.

Although rarely performed outside of research settings, measurement of epicardial and pericardial fat via CT is also emerging as a potentially useful approach for informing predictive and precision medicine strategies. Recently, the Jackson Heart Study showed pericardial and visceral fat volumes were associated with incident heart failure, particularly heart failure with preserved ejection fraction, and all-cause mortality among Black participants even after adjusting for age, sex, education, and smoking status. Another recent study showed an increased risk of heart failure, particularly heart failure with preserved ejection fraction, among men and women with high pericardial fat volume. The Multi-Ethnic Study of Atherosclerosis showed that pericardial fat was associated with a higher risk of all-cause cardiovascular disease, hard atherosclerotic cardiovascular disease, and heart failure. Epicardial fat is directly correlated with BMI, visceral adiposity, and waist circumference.

Best practices for the management of obesity begin with recognizing and treating it as a complex chronic disease rather than the result of an individual's lifestyle choices. According to a 2020 joint international consensus statement for ending the stigma of obesity, the assumption that choosing to eat less and/or exercise more can entirely prevent or reverse obesity is contradicted by a definitive body of biological and clinical evidence that shows obesity results primarily from a complex combination of genetic, epigenetic, and environmental factors. When diagnosing patients with obesity, it may be helpful for clinicians to acknowledge that the term obesity is often perceived as an undesirable term because it has been associated with stigma but that it is in fact a clinical diagnosis, not a judgement. Many patients prefer the neutral term unhealthy weight over obesity.

As with other chronic diseases, individualized treatment and long-term support along with shared decision-making are essential for optimizing outcomes. Key components of obesity management include diet, exercise, and behavioral modification. In addition, an increasing array of pharmacologic therapies are also showing unprecedented efficacy for weight management, including several drugs that are also approved for the management of type 2 diabetes. In particular, the glucagonlike peptide 1 (GLP-1) agonists, semaglutide and liraglutide, and the novel glucose-dependent insulinotropic polypeptide (GIP)–GLP-1 receptor agonist, tirzepatide have been associated with significant weight loss. Semaglutide and liraglutide have been US Food and Drug Administration (FDA)–approved for chronic weight management and tirzepatide was granted fast track designation for the treatment of obesity by the FDA in October 2022. These drugs may also help to prevent the progression of prediabetes to diabetes. For individuals with severe obesity, metabolic and bariatric surgery is an effective treatment option that is associated with clinically significant and relatively sustained weight reduction in addition to significant amelioration of related complications.

W. Scott Butsch, MD, MSc, Director of Obesity Medicine, Bariatric and Metabolic Institute, Cleveland Clinic, Cleveland, Ohio.

Dr. Butsch has disclosed the following relevant financial relationships:
Serve(d) as a director, officer, partner, employee, advisor, consultant, or trustee for: Novo Nordisk, Inc.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

This patient's clinical presentation of weight gain and associated symptoms are most closely related to a diagnosis of obesity. In addition, her laboratory findings are consistent with common obesity complications, including prediabetes and dyslipidemia, and her blood pressure is borderline high. 

Obesity is a chronic, multifactorial disease with a complex pathogenesis comprising of genetic, biological, psychosocial, socioeconomic, and environmental factors. It is a heterogeneous disease characterized by a dysfunction of the normal pathways and mechanisms that are involved in body fat regulation (often referred to as weight regulation), which may lead to variable presentation and complications. According to the US Centers for Disease Control and Prevention, the highest age-adjusted prevalence of obesity is seen in non-Hispanic Black adults (49.9%), followed by Hispanic adults (45.6%), non-Hispanic White adults (41.4%), and non-Hispanic Asian adults (16.1%).

Epidemiologic studies have defined obesity as a BMI > 30, which is then subclassified into class 1 (BMI of 30-34.9), class 2 (BMI of 35-39.9), or class 3 (BMI ≥ 40) obesity. Though BMI is widely used to evaluate and classify obesity, it mainly represents general adiposity and can be confounded by excessive muscle mass or frailty. Guidelines from the American Diabetes Association state that in addition to weight and BMI, clinicians should consider weight distribution (including predisposition for central/visceral adipose deposition) and weight gain pattern and trajectory because these can help guide risk stratification and treatment options.

Increasingly, evidence supports visceral adiposity, or abdominal obesity, as a marker of cardiovascular risk. Abdominal obesity has been shown to be a strong independent predictor of mortality. On its own, BMI is an insufficient biomarker of abdominal obesity. Not all individuals with obesity have a central distribution of their weight; some individuals may have central obesity without meeting the criteria for the BMI definition of obesity. This can lead to misclassification and underdiagnosis of health risks in clinical practice. Consequently, numerous organizations and expert panels have recommended that waist circumference be measured along with BMI, specifically when the BMI < 35. Measurement of both BMI and waist circumference provides valuable opportunities to counsel patients regarding their risk for cardiovascular disease and other complications of obesity. Waist-to-hip ratio has also been shown to be a stronger predictor for mortality compared with BMI; however, it is rarely measured in clinical practice.

Although rarely performed outside of research settings, measurement of epicardial and pericardial fat via CT is also emerging as a potentially useful approach for informing predictive and precision medicine strategies. Recently, the Jackson Heart Study showed pericardial and visceral fat volumes were associated with incident heart failure, particularly heart failure with preserved ejection fraction, and all-cause mortality among Black participants even after adjusting for age, sex, education, and smoking status. Another recent study showed an increased risk of heart failure, particularly heart failure with preserved ejection fraction, among men and women with high pericardial fat volume. The Multi-Ethnic Study of Atherosclerosis showed that pericardial fat was associated with a higher risk of all-cause cardiovascular disease, hard atherosclerotic cardiovascular disease, and heart failure. Epicardial fat is directly correlated with BMI, visceral adiposity, and waist circumference.

Best practices for the management of obesity begin with recognizing and treating it as a complex chronic disease rather than the result of an individual's lifestyle choices. According to a 2020 joint international consensus statement for ending the stigma of obesity, the assumption that choosing to eat less and/or exercise more can entirely prevent or reverse obesity is contradicted by a definitive body of biological and clinical evidence that shows obesity results primarily from a complex combination of genetic, epigenetic, and environmental factors. When diagnosing patients with obesity, it may be helpful for clinicians to acknowledge that the term obesity is often perceived as an undesirable term because it has been associated with stigma but that it is in fact a clinical diagnosis, not a judgement. Many patients prefer the neutral term unhealthy weight over obesity.

As with other chronic diseases, individualized treatment and long-term support along with shared decision-making are essential for optimizing outcomes. Key components of obesity management include diet, exercise, and behavioral modification. In addition, an increasing array of pharmacologic therapies are also showing unprecedented efficacy for weight management, including several drugs that are also approved for the management of type 2 diabetes. In particular, the glucagonlike peptide 1 (GLP-1) agonists, semaglutide and liraglutide, and the novel glucose-dependent insulinotropic polypeptide (GIP)–GLP-1 receptor agonist, tirzepatide have been associated with significant weight loss. Semaglutide and liraglutide have been US Food and Drug Administration (FDA)–approved for chronic weight management and tirzepatide was granted fast track designation for the treatment of obesity by the FDA in October 2022. These drugs may also help to prevent the progression of prediabetes to diabetes. For individuals with severe obesity, metabolic and bariatric surgery is an effective treatment option that is associated with clinically significant and relatively sustained weight reduction in addition to significant amelioration of related complications.

W. Scott Butsch, MD, MSc, Director of Obesity Medicine, Bariatric and Metabolic Institute, Cleveland Clinic, Cleveland, Ohio.

Dr. Butsch has disclosed the following relevant financial relationships:
Serve(d) as a director, officer, partner, employee, advisor, consultant, or trustee for: Novo Nordisk, Inc.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

This patient's clinical presentation of weight gain and associated symptoms are most closely related to a diagnosis of obesity. In addition, her laboratory findings are consistent with common obesity complications, including prediabetes and dyslipidemia, and her blood pressure is borderline high. 

Obesity is a chronic, multifactorial disease with a complex pathogenesis comprising of genetic, biological, psychosocial, socioeconomic, and environmental factors. It is a heterogeneous disease characterized by a dysfunction of the normal pathways and mechanisms that are involved in body fat regulation (often referred to as weight regulation), which may lead to variable presentation and complications. According to the US Centers for Disease Control and Prevention, the highest age-adjusted prevalence of obesity is seen in non-Hispanic Black adults (49.9%), followed by Hispanic adults (45.6%), non-Hispanic White adults (41.4%), and non-Hispanic Asian adults (16.1%).

Epidemiologic studies have defined obesity as a BMI > 30, which is then subclassified into class 1 (BMI of 30-34.9), class 2 (BMI of 35-39.9), or class 3 (BMI ≥ 40) obesity. Though BMI is widely used to evaluate and classify obesity, it mainly represents general adiposity and can be confounded by excessive muscle mass or frailty. Guidelines from the American Diabetes Association state that in addition to weight and BMI, clinicians should consider weight distribution (including predisposition for central/visceral adipose deposition) and weight gain pattern and trajectory because these can help guide risk stratification and treatment options.

Increasingly, evidence supports visceral adiposity, or abdominal obesity, as a marker of cardiovascular risk. Abdominal obesity has been shown to be a strong independent predictor of mortality. On its own, BMI is an insufficient biomarker of abdominal obesity. Not all individuals with obesity have a central distribution of their weight; some individuals may have central obesity without meeting the criteria for the BMI definition of obesity. This can lead to misclassification and underdiagnosis of health risks in clinical practice. Consequently, numerous organizations and expert panels have recommended that waist circumference be measured along with BMI, specifically when the BMI < 35. Measurement of both BMI and waist circumference provides valuable opportunities to counsel patients regarding their risk for cardiovascular disease and other complications of obesity. Waist-to-hip ratio has also been shown to be a stronger predictor for mortality compared with BMI; however, it is rarely measured in clinical practice.

Although rarely performed outside of research settings, measurement of epicardial and pericardial fat via CT is also emerging as a potentially useful approach for informing predictive and precision medicine strategies. Recently, the Jackson Heart Study showed pericardial and visceral fat volumes were associated with incident heart failure, particularly heart failure with preserved ejection fraction, and all-cause mortality among Black participants even after adjusting for age, sex, education, and smoking status. Another recent study showed an increased risk of heart failure, particularly heart failure with preserved ejection fraction, among men and women with high pericardial fat volume. The Multi-Ethnic Study of Atherosclerosis showed that pericardial fat was associated with a higher risk of all-cause cardiovascular disease, hard atherosclerotic cardiovascular disease, and heart failure. Epicardial fat is directly correlated with BMI, visceral adiposity, and waist circumference.

Best practices for the management of obesity begin with recognizing and treating it as a complex chronic disease rather than the result of an individual's lifestyle choices. According to a 2020 joint international consensus statement for ending the stigma of obesity, the assumption that choosing to eat less and/or exercise more can entirely prevent or reverse obesity is contradicted by a definitive body of biological and clinical evidence that shows obesity results primarily from a complex combination of genetic, epigenetic, and environmental factors. When diagnosing patients with obesity, it may be helpful for clinicians to acknowledge that the term obesity is often perceived as an undesirable term because it has been associated with stigma but that it is in fact a clinical diagnosis, not a judgement. Many patients prefer the neutral term unhealthy weight over obesity.

As with other chronic diseases, individualized treatment and long-term support along with shared decision-making are essential for optimizing outcomes. Key components of obesity management include diet, exercise, and behavioral modification. In addition, an increasing array of pharmacologic therapies are also showing unprecedented efficacy for weight management, including several drugs that are also approved for the management of type 2 diabetes. In particular, the glucagonlike peptide 1 (GLP-1) agonists, semaglutide and liraglutide, and the novel glucose-dependent insulinotropic polypeptide (GIP)–GLP-1 receptor agonist, tirzepatide have been associated with significant weight loss. Semaglutide and liraglutide have been US Food and Drug Administration (FDA)–approved for chronic weight management and tirzepatide was granted fast track designation for the treatment of obesity by the FDA in October 2022. These drugs may also help to prevent the progression of prediabetes to diabetes. For individuals with severe obesity, metabolic and bariatric surgery is an effective treatment option that is associated with clinically significant and relatively sustained weight reduction in addition to significant amelioration of related complications.

W. Scott Butsch, MD, MSc, Director of Obesity Medicine, Bariatric and Metabolic Institute, Cleveland Clinic, Cleveland, Ohio.

Dr. Butsch has disclosed the following relevant financial relationships:
Serve(d) as a director, officer, partner, employee, advisor, consultant, or trustee for: Novo Nordisk, Inc.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

This patient's clinical presentation and endoscopy findings are consistent with a diagnosis of recurrent MCL presenting as a colonic mass.

MCL is an aggressive type of non-Hodgkin lymphoma that accounts for approximately 5%-7% of all lymphomas. Nearly 80% of patients have extranodal involvement at initial presentation, occurring in sites such as the bone marrow, spleen, Waldeyer ring, and the gastrointestinal (GI) tract. Secondary GI involvement in MCL (involving nodal and/or other extranodal tissue) is common and may be detected at diagnosis and/or relapse. In several retrospective studies, the prevalence of secondary GI involvement in MCL ranged from 15% to 30%. However, in later studies, routine endoscopies in patients with untreated MCL showed GI involvement in up to 90% of patients, despite most patients not reporting GI symptoms.

The colon is the most commonly involved GI site; however, both the upper and lower GI tract from the stomach to the colon can be involved. Lymphomatous polyposis is the most common endoscopic presentation of MCL, but polyp, mass, or even normal-appearing mucosa may also be seen. 

New and emerging treatment options are helping to improve survival in patients with relapsed/refractory MCL. According to National Comprehensive Cancer Network guidelines, the preferred second-line and subsequent regimens are:

•    Bruton tyrosine kinase (BTK) inhibitors:

o    Acalabrutinib
o    Ibrutinib ± rituximab
o    Zanubrutinib

•    Lenalidomide + rituximab (if BTK inhibitor is contraindicated)

Other regimens that may be useful in certain circumstances are:

•    Bendamustine + rituximab (if not previously given)
•    Bendamustine + rituximab + cytarabine (RBAC500) (if not previously given)
•    Bortezomib ± rituximab
•    RDHA (rituximab, dexamethasone, cytarabine) + platinum (carboplatin, cisplatin, or oxaliplatin) (if not previously given)
•    GemOx (gemcitabine, oxaliplatin) + rituximab
•    Ibrutinib, lenalidomide, rituximab (category 2B)
•    Ibrutinib + venetoclax
•    Venetoclax, lenalidomide, rituximab (category 2B)
•    Venetoclax ± rituximab

Brexucabtagene autoleucel is suggested as third-line therapy, after chemoimmunotherapy and treatment with a BTK inhibitor. 

Timothy J. Voorhees, MD, MSCR, Assistant Professor of Internal Medicine - Clinical, Division of Hematology, The Ohio State University James Comprehensive Cancer Center, Columbus, OH.

Timothy J. Voorhees, MD, MSCR, has disclosed the following relevant financial relationships:
Received research grant from: AstraZeneca; Morphosys; Incyte; Recordati.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

This patient's clinical presentation and endoscopy findings are consistent with a diagnosis of recurrent MCL presenting as a colonic mass.

MCL is an aggressive type of non-Hodgkin lymphoma that accounts for approximately 5%-7% of all lymphomas. Nearly 80% of patients have extranodal involvement at initial presentation, occurring in sites such as the bone marrow, spleen, Waldeyer ring, and the gastrointestinal (GI) tract. Secondary GI involvement in MCL (involving nodal and/or other extranodal tissue) is common and may be detected at diagnosis and/or relapse. In several retrospective studies, the prevalence of secondary GI involvement in MCL ranged from 15% to 30%. However, in later studies, routine endoscopies in patients with untreated MCL showed GI involvement in up to 90% of patients, despite most patients not reporting GI symptoms.

The colon is the most commonly involved GI site; however, both the upper and lower GI tract from the stomach to the colon can be involved. Lymphomatous polyposis is the most common endoscopic presentation of MCL, but polyp, mass, or even normal-appearing mucosa may also be seen. 

New and emerging treatment options are helping to improve survival in patients with relapsed/refractory MCL. According to National Comprehensive Cancer Network guidelines, the preferred second-line and subsequent regimens are:

•    Bruton tyrosine kinase (BTK) inhibitors:

o    Acalabrutinib
o    Ibrutinib ± rituximab
o    Zanubrutinib

•    Lenalidomide + rituximab (if BTK inhibitor is contraindicated)

Other regimens that may be useful in certain circumstances are:

•    Bendamustine + rituximab (if not previously given)
•    Bendamustine + rituximab + cytarabine (RBAC500) (if not previously given)
•    Bortezomib ± rituximab
•    RDHA (rituximab, dexamethasone, cytarabine) + platinum (carboplatin, cisplatin, or oxaliplatin) (if not previously given)
•    GemOx (gemcitabine, oxaliplatin) + rituximab
•    Ibrutinib, lenalidomide, rituximab (category 2B)
•    Ibrutinib + venetoclax
•    Venetoclax, lenalidomide, rituximab (category 2B)
•    Venetoclax ± rituximab

Brexucabtagene autoleucel is suggested as third-line therapy, after chemoimmunotherapy and treatment with a BTK inhibitor. 

Timothy J. Voorhees, MD, MSCR, Assistant Professor of Internal Medicine - Clinical, Division of Hematology, The Ohio State University James Comprehensive Cancer Center, Columbus, OH.

Timothy J. Voorhees, MD, MSCR, has disclosed the following relevant financial relationships:
Received research grant from: AstraZeneca; Morphosys; Incyte; Recordati.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

This patient's clinical presentation and endoscopy findings are consistent with a diagnosis of recurrent MCL presenting as a colonic mass.

MCL is an aggressive type of non-Hodgkin lymphoma that accounts for approximately 5%-7% of all lymphomas. Nearly 80% of patients have extranodal involvement at initial presentation, occurring in sites such as the bone marrow, spleen, Waldeyer ring, and the gastrointestinal (GI) tract. Secondary GI involvement in MCL (involving nodal and/or other extranodal tissue) is common and may be detected at diagnosis and/or relapse. In several retrospective studies, the prevalence of secondary GI involvement in MCL ranged from 15% to 30%. However, in later studies, routine endoscopies in patients with untreated MCL showed GI involvement in up to 90% of patients, despite most patients not reporting GI symptoms.

The colon is the most commonly involved GI site; however, both the upper and lower GI tract from the stomach to the colon can be involved. Lymphomatous polyposis is the most common endoscopic presentation of MCL, but polyp, mass, or even normal-appearing mucosa may also be seen. 

New and emerging treatment options are helping to improve survival in patients with relapsed/refractory MCL. According to National Comprehensive Cancer Network guidelines, the preferred second-line and subsequent regimens are:

•    Bruton tyrosine kinase (BTK) inhibitors:

o    Acalabrutinib
o    Ibrutinib ± rituximab
o    Zanubrutinib

•    Lenalidomide + rituximab (if BTK inhibitor is contraindicated)

Other regimens that may be useful in certain circumstances are:

•    Bendamustine + rituximab (if not previously given)
•    Bendamustine + rituximab + cytarabine (RBAC500) (if not previously given)
•    Bortezomib ± rituximab
•    RDHA (rituximab, dexamethasone, cytarabine) + platinum (carboplatin, cisplatin, or oxaliplatin) (if not previously given)
•    GemOx (gemcitabine, oxaliplatin) + rituximab
•    Ibrutinib, lenalidomide, rituximab (category 2B)
•    Ibrutinib + venetoclax
•    Venetoclax, lenalidomide, rituximab (category 2B)
•    Venetoclax ± rituximab

Brexucabtagene autoleucel is suggested as third-line therapy, after chemoimmunotherapy and treatment with a BTK inhibitor. 

Timothy J. Voorhees, MD, MSCR, Assistant Professor of Internal Medicine - Clinical, Division of Hematology, The Ohio State University James Comprehensive Cancer Center, Columbus, OH.

Timothy J. Voorhees, MD, MSCR, has disclosed the following relevant financial relationships:
Received research grant from: AstraZeneca; Morphosys; Incyte; Recordati.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

This patient's clinical presentation is consistent with a diagnosis of superior vena cava syndrome (SVCS), secondary to SCLC. 

SCLC is an aggressive, poorly differentiated, high-grade neuroendocrine carcinoma that accounts for approximately 13%-15% of all new lung cancer cases in the United States. SCLC has a propensity for early dissemination; as such, 80%-85% of patients are diagnosed with extensive disease (ES-SCLC). This is common in heavy smokers. Most SCLC tumors are found in hilar or perihilar areas;  <5% present in peripheral locations. In many cases, invasion into the peribronchial tissue and lymph node can be clearly identified, with a typical circumferential spread along the submucosa of the bronchi.

Up to 10% of patients with SCLC develop SVCS, which comprises an array of signs and symptoms that result from the obstruction of blood flow through the thin-walled superior vena cava. Clinical symptoms may include cough, dyspnea, and orthopnea; facial edema and plethora, upper extremity swelling, and venous distension of the chest wall and neck are the most commonly encountered signs. Most cases of SVCS occur in patients with mediastinal tumors, although noncancerous causes (eg, thrombosis and fibrosing mediastinitis) can also give rise to it. The diagnosis of SVCS is usually made clinically and then confirmed with imaging (chest radiography, contrast-enhanced CT, duplex ultrasound, conventional venography, and/or magnetic resonance venography).

Though it was traditionally considered a virtual emergency, patients seldom experience life-threatening complications from SVCS. The goals of treatment are to alleviate the symptoms of SVC obstruction and treat the underlying disease process. Treatment approaches include radiation therapy, chemotherapy, open surgery, and endovenous recanalization; however, patients with clinical SVCS often achieve significant improvement in symptoms from conservative treatment approaches, including elevation of the head of the bed and supplemental oxygen. Systemic chemotherapy can effectively relieve the symptoms of SVCS obstruction, typically within 1-2 weeks of treatment initiation. Up to 80% of patients with SCLC and non-Hodgkin lymphoma may experience complete relief of SVCS symptoms with chemotherapy treatment.

Radiation therapy was once considered the standard approach to the management of SVCS in patients with cancer; however, endovenous recanalization can alleviate symptoms faster than radiation therapy — usually within 72 hours, whereas radiation therapy can take up to 2 weeks to provide relief. Endovascular therapy is also associated with higher efficacy rates than is radiation therapy. 

Open surgery plays a limited role in the management of SVC obstruction, although it may be the best approach in select cases. 
 
In cases involving brain edema, decreased cardiac output, or upper airway edema, emergency treatment is indicated. 

Karl J. D'Silva, MD, Clinical Assistant Professor, Department of Medicine, Tufts University School of Medicine, Boston; Medical Director, Department of Oncology and Hematology, Lahey Hospital and Medical Center, Peabody, Massachusetts.

Karl J. D'Silva, MD, has disclosed no relevant financial relationships.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

This patient's clinical presentation is consistent with a diagnosis of superior vena cava syndrome (SVCS), secondary to SCLC. 

SCLC is an aggressive, poorly differentiated, high-grade neuroendocrine carcinoma that accounts for approximately 13%-15% of all new lung cancer cases in the United States. SCLC has a propensity for early dissemination; as such, 80%-85% of patients are diagnosed with extensive disease (ES-SCLC). This is common in heavy smokers. Most SCLC tumors are found in hilar or perihilar areas;  <5% present in peripheral locations. In many cases, invasion into the peribronchial tissue and lymph node can be clearly identified, with a typical circumferential spread along the submucosa of the bronchi.

Up to 10% of patients with SCLC develop SVCS, which comprises an array of signs and symptoms that result from the obstruction of blood flow through the thin-walled superior vena cava. Clinical symptoms may include cough, dyspnea, and orthopnea; facial edema and plethora, upper extremity swelling, and venous distension of the chest wall and neck are the most commonly encountered signs. Most cases of SVCS occur in patients with mediastinal tumors, although noncancerous causes (eg, thrombosis and fibrosing mediastinitis) can also give rise to it. The diagnosis of SVCS is usually made clinically and then confirmed with imaging (chest radiography, contrast-enhanced CT, duplex ultrasound, conventional venography, and/or magnetic resonance venography).

Though it was traditionally considered a virtual emergency, patients seldom experience life-threatening complications from SVCS. The goals of treatment are to alleviate the symptoms of SVC obstruction and treat the underlying disease process. Treatment approaches include radiation therapy, chemotherapy, open surgery, and endovenous recanalization; however, patients with clinical SVCS often achieve significant improvement in symptoms from conservative treatment approaches, including elevation of the head of the bed and supplemental oxygen. Systemic chemotherapy can effectively relieve the symptoms of SVCS obstruction, typically within 1-2 weeks of treatment initiation. Up to 80% of patients with SCLC and non-Hodgkin lymphoma may experience complete relief of SVCS symptoms with chemotherapy treatment.

Radiation therapy was once considered the standard approach to the management of SVCS in patients with cancer; however, endovenous recanalization can alleviate symptoms faster than radiation therapy — usually within 72 hours, whereas radiation therapy can take up to 2 weeks to provide relief. Endovascular therapy is also associated with higher efficacy rates than is radiation therapy. 

Open surgery plays a limited role in the management of SVC obstruction, although it may be the best approach in select cases. 
 
In cases involving brain edema, decreased cardiac output, or upper airway edema, emergency treatment is indicated. 

Karl J. D'Silva, MD, Clinical Assistant Professor, Department of Medicine, Tufts University School of Medicine, Boston; Medical Director, Department of Oncology and Hematology, Lahey Hospital and Medical Center, Peabody, Massachusetts.

Karl J. D'Silva, MD, has disclosed no relevant financial relationships.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

This patient's clinical presentation is consistent with a diagnosis of superior vena cava syndrome (SVCS), secondary to SCLC. 

SCLC is an aggressive, poorly differentiated, high-grade neuroendocrine carcinoma that accounts for approximately 13%-15% of all new lung cancer cases in the United States. SCLC has a propensity for early dissemination; as such, 80%-85% of patients are diagnosed with extensive disease (ES-SCLC). This is common in heavy smokers. Most SCLC tumors are found in hilar or perihilar areas;  <5% present in peripheral locations. In many cases, invasion into the peribronchial tissue and lymph node can be clearly identified, with a typical circumferential spread along the submucosa of the bronchi.

Up to 10% of patients with SCLC develop SVCS, which comprises an array of signs and symptoms that result from the obstruction of blood flow through the thin-walled superior vena cava. Clinical symptoms may include cough, dyspnea, and orthopnea; facial edema and plethora, upper extremity swelling, and venous distension of the chest wall and neck are the most commonly encountered signs. Most cases of SVCS occur in patients with mediastinal tumors, although noncancerous causes (eg, thrombosis and fibrosing mediastinitis) can also give rise to it. The diagnosis of SVCS is usually made clinically and then confirmed with imaging (chest radiography, contrast-enhanced CT, duplex ultrasound, conventional venography, and/or magnetic resonance venography).

Though it was traditionally considered a virtual emergency, patients seldom experience life-threatening complications from SVCS. The goals of treatment are to alleviate the symptoms of SVC obstruction and treat the underlying disease process. Treatment approaches include radiation therapy, chemotherapy, open surgery, and endovenous recanalization; however, patients with clinical SVCS often achieve significant improvement in symptoms from conservative treatment approaches, including elevation of the head of the bed and supplemental oxygen. Systemic chemotherapy can effectively relieve the symptoms of SVCS obstruction, typically within 1-2 weeks of treatment initiation. Up to 80% of patients with SCLC and non-Hodgkin lymphoma may experience complete relief of SVCS symptoms with chemotherapy treatment.

Radiation therapy was once considered the standard approach to the management of SVCS in patients with cancer; however, endovenous recanalization can alleviate symptoms faster than radiation therapy — usually within 72 hours, whereas radiation therapy can take up to 2 weeks to provide relief. Endovascular therapy is also associated with higher efficacy rates than is radiation therapy. 

Open surgery plays a limited role in the management of SVC obstruction, although it may be the best approach in select cases. 
 
In cases involving brain edema, decreased cardiac output, or upper airway edema, emergency treatment is indicated. 

Karl J. D'Silva, MD, Clinical Assistant Professor, Department of Medicine, Tufts University School of Medicine, Boston; Medical Director, Department of Oncology and Hematology, Lahey Hospital and Medical Center, Peabody, Massachusetts.

Karl J. D'Silva, MD, has disclosed no relevant financial relationships.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

The patient is diagnosed with atopic dermatitis (AD) complicated by skin infection. 

AD is the most common chronic pruritic inflammatory skin disorder that affects both children and adults. In the United States, up to 18% of children and 7% of adults are affected. Atopic dermatitis is associated with diminished quality of life, including disruption in activities of daily living, sleep disturbance, depression, and anxiety. Moreover, patients with AD have an increased risk for infections. A significantly higher prevalence of cutaneous and systemic infections is seen in patients with AD compared with individuals without AD.

Bacterial infections are common in AD and are usually caused by Staphylococcus aureus. Examples include impetigo, which typically presents with oozing serum that dries, resulting in a honey-crusted appearance surrounded by an erythematous base. Fluid-filled blisters (bullous impetigo) may also be present, which can be mistaken for eczema herpeticum (EH).

Nonpurulent skin and soft tissue infections (SSTIs) include erysipelas and cellulitis. In most cases, these infections begin in a focal skin area but spread rapidly across the affected sites such as the arms, legs, trunk, or face. Signs typically include focal erythema, swelling, warmth, and tenderness; fever and bacteremia may also be present. 

Purulent SSTIs present as skin abscesses, involving fluctuant or nonfluctuant nodules or pustules surrounded by an erythematous swelling; the lesions may also be tender and warm. Methicillin-resistant S aureus (MRSA) is a common cause of purulent SSTIs. 

Systemic complications of SSTI in AD may include bacteremia, osteomyelitis, septic arthritis, or bursitis; less often, endocarditis and staphylococcal scalded skin syndrome may occur. Clinicians should maintain a high index of suspicion for these complications in patients who present with an ill-looking appearance, lethargy, focal point tenderness of the bone, joint swelling, heart murmur, and widespread desquamation. Persistent elevated inflammatory markers (eg, C-reactive protein or erythrocyte sedimentation rate) should increase the level of suspicion.

Nonbacterial infections can occur concurrently with bacterial skin infections and the two can be difficult to distinguish. For example, EH results from the local spread of herpes simplex virus, which has a predilection for AD lesions. Early during EH, skin lesions appear as superficial clusters of dome‐shaped vesicles and/or small, round, punched‐out erosions. With progression, the lesions may become superficially infected with S aureus and may develop the characteristic honey-colored scale of impetigo.

Factors that contribute to the increased prevalence of infections in AD include skin barrier defects, suppression of cutaneous innate immunity by type 2 inflammation, S aureus colonization, allergen sensitivity, filaggrin loss-of-function mutation, and cutaneous dysbiosis. 

Daily skin hydration and moisturization is a fundamental component of treatment for any patient with AD, both to treat the AD and prevent infection. Patients with AD should bathe daily, followed by gentle drying and application of a moisturizer or a prescribed topical medication. Standard topical anti-inflammatory medications, including topical corticosteroids and topical calcineurin inhibitors, improve skin barrier functions and have been reported to decrease S aureus colonization in AD lesions. Similarly, the monoclonal antibody dupilumab has been shown to decrease S aureus colonization and increase microbial diversity.
 
In the presence of an uncomplicated, nonpurulent skin infection, a beta-lactam antibiotic that covers both S aureus and beta-hemolytic streptococci (eg, cefazolin or cephalexin) may be sufficient, depending on clinical response or culture and in consideration of local epidemiology and resistance patterns. For patients with AD who present with a skin abscess, history of MRSA colonization, close contacts with a history of skin infections, or recent hospitalization, coverage for MRSA should be considered. Acceptable oral options for MRSA skin infections include clindamycin, doxycycline, trimethoprim-sulfamethoxazole, and linezolid, assuming that the isolate is susceptible in vitro. Topical mupirocin ointment can be used for patients with minor, localized skin infections (eg, impetigo). 

William D. James, MD, Professor, Department of Dermatology, University of Pennsylvania, Philadelphia.

Disclosure: William D. James, MD, has disclosed the following relevant financial relationships:
Received income in an amount equal to or greater than $250 from: Elsevier.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

The patient is diagnosed with atopic dermatitis (AD) complicated by skin infection. 

AD is the most common chronic pruritic inflammatory skin disorder that affects both children and adults. In the United States, up to 18% of children and 7% of adults are affected. Atopic dermatitis is associated with diminished quality of life, including disruption in activities of daily living, sleep disturbance, depression, and anxiety. Moreover, patients with AD have an increased risk for infections. A significantly higher prevalence of cutaneous and systemic infections is seen in patients with AD compared with individuals without AD.

Bacterial infections are common in AD and are usually caused by Staphylococcus aureus. Examples include impetigo, which typically presents with oozing serum that dries, resulting in a honey-crusted appearance surrounded by an erythematous base. Fluid-filled blisters (bullous impetigo) may also be present, which can be mistaken for eczema herpeticum (EH).

Nonpurulent skin and soft tissue infections (SSTIs) include erysipelas and cellulitis. In most cases, these infections begin in a focal skin area but spread rapidly across the affected sites such as the arms, legs, trunk, or face. Signs typically include focal erythema, swelling, warmth, and tenderness; fever and bacteremia may also be present. 

Purulent SSTIs present as skin abscesses, involving fluctuant or nonfluctuant nodules or pustules surrounded by an erythematous swelling; the lesions may also be tender and warm. Methicillin-resistant S aureus (MRSA) is a common cause of purulent SSTIs. 

Systemic complications of SSTI in AD may include bacteremia, osteomyelitis, septic arthritis, or bursitis; less often, endocarditis and staphylococcal scalded skin syndrome may occur. Clinicians should maintain a high index of suspicion for these complications in patients who present with an ill-looking appearance, lethargy, focal point tenderness of the bone, joint swelling, heart murmur, and widespread desquamation. Persistent elevated inflammatory markers (eg, C-reactive protein or erythrocyte sedimentation rate) should increase the level of suspicion.

Nonbacterial infections can occur concurrently with bacterial skin infections and the two can be difficult to distinguish. For example, EH results from the local spread of herpes simplex virus, which has a predilection for AD lesions. Early during EH, skin lesions appear as superficial clusters of dome‐shaped vesicles and/or small, round, punched‐out erosions. With progression, the lesions may become superficially infected with S aureus and may develop the characteristic honey-colored scale of impetigo.

Factors that contribute to the increased prevalence of infections in AD include skin barrier defects, suppression of cutaneous innate immunity by type 2 inflammation, S aureus colonization, allergen sensitivity, filaggrin loss-of-function mutation, and cutaneous dysbiosis. 

Daily skin hydration and moisturization is a fundamental component of treatment for any patient with AD, both to treat the AD and prevent infection. Patients with AD should bathe daily, followed by gentle drying and application of a moisturizer or a prescribed topical medication. Standard topical anti-inflammatory medications, including topical corticosteroids and topical calcineurin inhibitors, improve skin barrier functions and have been reported to decrease S aureus colonization in AD lesions. Similarly, the monoclonal antibody dupilumab has been shown to decrease S aureus colonization and increase microbial diversity.
 
In the presence of an uncomplicated, nonpurulent skin infection, a beta-lactam antibiotic that covers both S aureus and beta-hemolytic streptococci (eg, cefazolin or cephalexin) may be sufficient, depending on clinical response or culture and in consideration of local epidemiology and resistance patterns. For patients with AD who present with a skin abscess, history of MRSA colonization, close contacts with a history of skin infections, or recent hospitalization, coverage for MRSA should be considered. Acceptable oral options for MRSA skin infections include clindamycin, doxycycline, trimethoprim-sulfamethoxazole, and linezolid, assuming that the isolate is susceptible in vitro. Topical mupirocin ointment can be used for patients with minor, localized skin infections (eg, impetigo). 

William D. James, MD, Professor, Department of Dermatology, University of Pennsylvania, Philadelphia.

Disclosure: William D. James, MD, has disclosed the following relevant financial relationships:
Received income in an amount equal to or greater than $250 from: Elsevier.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.

The patient is diagnosed with atopic dermatitis (AD) complicated by skin infection. 

AD is the most common chronic pruritic inflammatory skin disorder that affects both children and adults. In the United States, up to 18% of children and 7% of adults are affected. Atopic dermatitis is associated with diminished quality of life, including disruption in activities of daily living, sleep disturbance, depression, and anxiety. Moreover, patients with AD have an increased risk for infections. A significantly higher prevalence of cutaneous and systemic infections is seen in patients with AD compared with individuals without AD.

Bacterial infections are common in AD and are usually caused by Staphylococcus aureus. Examples include impetigo, which typically presents with oozing serum that dries, resulting in a honey-crusted appearance surrounded by an erythematous base. Fluid-filled blisters (bullous impetigo) may also be present, which can be mistaken for eczema herpeticum (EH).

Nonpurulent skin and soft tissue infections (SSTIs) include erysipelas and cellulitis. In most cases, these infections begin in a focal skin area but spread rapidly across the affected sites such as the arms, legs, trunk, or face. Signs typically include focal erythema, swelling, warmth, and tenderness; fever and bacteremia may also be present. 

Purulent SSTIs present as skin abscesses, involving fluctuant or nonfluctuant nodules or pustules surrounded by an erythematous swelling; the lesions may also be tender and warm. Methicillin-resistant S aureus (MRSA) is a common cause of purulent SSTIs. 

Systemic complications of SSTI in AD may include bacteremia, osteomyelitis, septic arthritis, or bursitis; less often, endocarditis and staphylococcal scalded skin syndrome may occur. Clinicians should maintain a high index of suspicion for these complications in patients who present with an ill-looking appearance, lethargy, focal point tenderness of the bone, joint swelling, heart murmur, and widespread desquamation. Persistent elevated inflammatory markers (eg, C-reactive protein or erythrocyte sedimentation rate) should increase the level of suspicion.

Nonbacterial infections can occur concurrently with bacterial skin infections and the two can be difficult to distinguish. For example, EH results from the local spread of herpes simplex virus, which has a predilection for AD lesions. Early during EH, skin lesions appear as superficial clusters of dome‐shaped vesicles and/or small, round, punched‐out erosions. With progression, the lesions may become superficially infected with S aureus and may develop the characteristic honey-colored scale of impetigo.

Factors that contribute to the increased prevalence of infections in AD include skin barrier defects, suppression of cutaneous innate immunity by type 2 inflammation, S aureus colonization, allergen sensitivity, filaggrin loss-of-function mutation, and cutaneous dysbiosis. 

Daily skin hydration and moisturization is a fundamental component of treatment for any patient with AD, both to treat the AD and prevent infection. Patients with AD should bathe daily, followed by gentle drying and application of a moisturizer or a prescribed topical medication. Standard topical anti-inflammatory medications, including topical corticosteroids and topical calcineurin inhibitors, improve skin barrier functions and have been reported to decrease S aureus colonization in AD lesions. Similarly, the monoclonal antibody dupilumab has been shown to decrease S aureus colonization and increase microbial diversity.
 
In the presence of an uncomplicated, nonpurulent skin infection, a beta-lactam antibiotic that covers both S aureus and beta-hemolytic streptococci (eg, cefazolin or cephalexin) may be sufficient, depending on clinical response or culture and in consideration of local epidemiology and resistance patterns. For patients with AD who present with a skin abscess, history of MRSA colonization, close contacts with a history of skin infections, or recent hospitalization, coverage for MRSA should be considered. Acceptable oral options for MRSA skin infections include clindamycin, doxycycline, trimethoprim-sulfamethoxazole, and linezolid, assuming that the isolate is susceptible in vitro. Topical mupirocin ointment can be used for patients with minor, localized skin infections (eg, impetigo). 

William D. James, MD, Professor, Department of Dermatology, University of Pennsylvania, Philadelphia.

Disclosure: William D. James, MD, has disclosed the following relevant financial relationships:
Received income in an amount equal to or greater than $250 from: Elsevier.

Image Quizzes are fictional or fictionalized clinical scenarios intended to provide evidence-based educational takeaways.