Photo Rounds

Lab work was ordered and came back within normal range, except for an elevated white blood cell count (19,700/mm³; reference range, 4500-13,500/mm³). His mild systemic symptoms, skin lesions without blistering or necrosis, acral edema, and the absence of lymphadenopathy pointed to a diagnosis of urticaria multiforme.

Urticaria multiforme, also called acute annular urticaria or acute urticarial hypersensitivity syndrome, is a histamine-mediated hypersensitivity reaction characterized by transient annular, polycyclic, urticarial lesions with central ecchymosis. It typically manifests in children ages 4 months to 4 years and begins with small erythematous macules, papules, and plaques that progress to large blanchable wheals with dusky blue centers.^1-3 Lesions are usually located on the face, trunk, and extremities and are often pruritic (60%-94%).^1-3 The rash generally lasts 2 to 12 days.^1,3

Patients often report a preceding viral illness, otitis media, recent use of antibiotics, or recent immunizations. Patients also often have associated facial or acral edema (72%).¹ Children with significant edema of the feet may find walking difficult, which should not be confused with arthritis or arthralgias.

The diagnosis is made clinically and should not require a skin biopsy or extensive laboratory testing. When performed, laboratory studies—including CBC, erythrocyte sedimentation rate, C-reactive protein, and urinalysis—are routinely normal. The differential diagnosis in this case included erythema multiforme, Henoch-Schönlein purpura, serum sickness-like reaction, and urticarial vasculitis.^1,2,4

Treatment consists of discontinuing any offending agent (if suspected) and using systemic H1 or H2 antihistamines for symptom relief. Systemic steroids should only be given in refractory cases.

Our patient’s amoxicillin was discontinued, and he was started on a 14-day course of cetirizine 5 mg bid and hydroxyzine 10 mg at bedtime. He was also started on triamcinolone 0.1% cream to be applied twice daily for 1 week. During his 3-day hospital stay, his fever resolved, and his rash and edema improved.

During an outpatient follow-up visit with a pediatric dermatologist 2 weeks after discharge, the patient’s rash was still present and dermatographism was noted. In light of this, his parents were instructed to continue giving the cetirizine and hydroxyzine once daily for an additional 2 weeks and to return as needed.

‌

This case was adapted from: Cook JS, Angles A, Morley E. Urticaria and edema in a 2-year-old boy. J Fam Pract. 2021;70:353-355.

Photos courtesy of Jeffrey S. Cook, MD, FAAFP

Lab work was ordered and came back within normal range, except for an elevated white blood cell count (19,700/mm³; reference range, 4500-13,500/mm³). His mild systemic symptoms, skin lesions without blistering or necrosis, acral edema, and the absence of lymphadenopathy pointed to a diagnosis of urticaria multiforme.

Urticaria multiforme, also called acute annular urticaria or acute urticarial hypersensitivity syndrome, is a histamine-mediated hypersensitivity reaction characterized by transient annular, polycyclic, urticarial lesions with central ecchymosis. It typically manifests in children ages 4 months to 4 years and begins with small erythematous macules, papules, and plaques that progress to large blanchable wheals with dusky blue centers.^1-3 Lesions are usually located on the face, trunk, and extremities and are often pruritic (60%-94%).^1-3 The rash generally lasts 2 to 12 days.^1,3

Patients often report a preceding viral illness, otitis media, recent use of antibiotics, or recent immunizations. Patients also often have associated facial or acral edema (72%).¹ Children with significant edema of the feet may find walking difficult, which should not be confused with arthritis or arthralgias.

The diagnosis is made clinically and should not require a skin biopsy or extensive laboratory testing. When performed, laboratory studies—including CBC, erythrocyte sedimentation rate, C-reactive protein, and urinalysis—are routinely normal. The differential diagnosis in this case included erythema multiforme, Henoch-Schönlein purpura, serum sickness-like reaction, and urticarial vasculitis.^1,2,4

Treatment consists of discontinuing any offending agent (if suspected) and using systemic H1 or H2 antihistamines for symptom relief. Systemic steroids should only be given in refractory cases.

Our patient’s amoxicillin was discontinued, and he was started on a 14-day course of cetirizine 5 mg bid and hydroxyzine 10 mg at bedtime. He was also started on triamcinolone 0.1% cream to be applied twice daily for 1 week. During his 3-day hospital stay, his fever resolved, and his rash and edema improved.

During an outpatient follow-up visit with a pediatric dermatologist 2 weeks after discharge, the patient’s rash was still present and dermatographism was noted. In light of this, his parents were instructed to continue giving the cetirizine and hydroxyzine once daily for an additional 2 weeks and to return as needed.

‌

This case was adapted from: Cook JS, Angles A, Morley E. Urticaria and edema in a 2-year-old boy. J Fam Pract. 2021;70:353-355.

Photos courtesy of Jeffrey S. Cook, MD, FAAFP

Lab work was ordered and came back within normal range, except for an elevated white blood cell count (19,700/mm³; reference range, 4500-13,500/mm³). His mild systemic symptoms, skin lesions without blistering or necrosis, acral edema, and the absence of lymphadenopathy pointed to a diagnosis of urticaria multiforme.

Urticaria multiforme, also called acute annular urticaria or acute urticarial hypersensitivity syndrome, is a histamine-mediated hypersensitivity reaction characterized by transient annular, polycyclic, urticarial lesions with central ecchymosis. It typically manifests in children ages 4 months to 4 years and begins with small erythematous macules, papules, and plaques that progress to large blanchable wheals with dusky blue centers.^1-3 Lesions are usually located on the face, trunk, and extremities and are often pruritic (60%-94%).^1-3 The rash generally lasts 2 to 12 days.^1,3

Patients often report a preceding viral illness, otitis media, recent use of antibiotics, or recent immunizations. Patients also often have associated facial or acral edema (72%).¹ Children with significant edema of the feet may find walking difficult, which should not be confused with arthritis or arthralgias.

The diagnosis is made clinically and should not require a skin biopsy or extensive laboratory testing. When performed, laboratory studies—including CBC, erythrocyte sedimentation rate, C-reactive protein, and urinalysis—are routinely normal. The differential diagnosis in this case included erythema multiforme, Henoch-Schönlein purpura, serum sickness-like reaction, and urticarial vasculitis.^1,2,4

Treatment consists of discontinuing any offending agent (if suspected) and using systemic H1 or H2 antihistamines for symptom relief. Systemic steroids should only be given in refractory cases.

Our patient’s amoxicillin was discontinued, and he was started on a 14-day course of cetirizine 5 mg bid and hydroxyzine 10 mg at bedtime. He was also started on triamcinolone 0.1% cream to be applied twice daily for 1 week. During his 3-day hospital stay, his fever resolved, and his rash and edema improved.

During an outpatient follow-up visit with a pediatric dermatologist 2 weeks after discharge, the patient’s rash was still present and dermatographism was noted. In light of this, his parents were instructed to continue giving the cetirizine and hydroxyzine once daily for an additional 2 weeks and to return as needed.

‌

This case was adapted from: Cook JS, Angles A, Morley E. Urticaria and edema in a 2-year-old boy. J Fam Pract. 2021;70:353-355.

Photos courtesy of Jeffrey S. Cook, MD, FAAFP

This patient was given a diagnosis of bullous pemphigoid. Although there were a number of clues that pointed to this diagnosis, confirming that this was the case required 2 biopsies and a blood draw. (More on this in a bit.)

Although rare and potentially lethal, bullous pemphigoid is the most common autoimmune blistering disease in the elderly. Patients present with tense bullae over limited or widespread areas of the skin. The pathogenesis includes development of autoimmune antibodies that target important proteins (BP180 and BP230) that bind basal epidermal keratinocytes to the dermis. When weakened by inflammation at these sites, the skin delaminates at the dermal-epidermal junction, while the cells of the epidermis continue to bind to each other. This leads to itching, hive-like wheals, and tense fluid-filled bullae.

The differential diagnosis of an acute or semi-acute bullous disease includes bullous pemphigoid, IgA pemphigoid, linear IgA bullous dermatosis, epidermolysis bullosa acquisita, and Senear-Usher syndrome. In this case, the large tense bullae suggested bullous pemphigoid over the other diagnoses.

Initial diagnosis requires 2 biopsies be performed: One at the edge of a bulla for a standard pathologic exam to identify the skin level at which the bulla is forming, and another biopsy of skin near the site of inflammation (5-10 mm away) to be sent for direct immunofluorescence (DIF) in Michel’s medium or Zeus medium. In bullous pemphigoid, the separation is at the dermal-epidermal junction, and IgG and C3 are found in the DIF in the same location. There are a couple ways to differentiate this disorder from epidermolysis bullosa acquisita—a similar blistering disorder in which autoantibodies attack collagen at the dermal-epidermal junction. A common approach is to send a patient’s serum for indirect immunofluorescence. This is done because it is impossible to distinguish between the 2 clinically.

While bullous pemphigoid has historically been treated with high-dose prednisone, it is more common now to treat with whole-body topical clobetasol and oral doxycycline 100 mg twice a day to avoid the adverse effects of the prednisone. Other immunosuppressive options, such as mycophenolate mofetil and cyclosporine, can provide the potency of prednisone with a more favorable long-term safety profile. Rituximab infusions are another very powerful and durable option in refractory or severe cases.¹

This patient was treated with topical clobetasol and doxycycline 100 mg twice a day, but he had incomplete clearance after 2 to 3 weeks. At that point, mycophenolate mofetil was added to the regimen and was titrated up to 1000 mg twice daily. When clearance occurred, the clobetasol was discontinued and the mycophenolate mofetil was titrated down to 250 mg/d; the patient continues to maintain clearance at this dose. He continues on doxycycline 100 mg bid.

‌

Photos and text for Photo Rounds Friday courtesy of Jonathan Karnes, MD (copyright retained). Dr. Karnes is the medical director of MDFMR Dermatology Services, Augusta, ME.

This patient was given a diagnosis of bullous pemphigoid. Although there were a number of clues that pointed to this diagnosis, confirming that this was the case required 2 biopsies and a blood draw. (More on this in a bit.)

Although rare and potentially lethal, bullous pemphigoid is the most common autoimmune blistering disease in the elderly. Patients present with tense bullae over limited or widespread areas of the skin. The pathogenesis includes development of autoimmune antibodies that target important proteins (BP180 and BP230) that bind basal epidermal keratinocytes to the dermis. When weakened by inflammation at these sites, the skin delaminates at the dermal-epidermal junction, while the cells of the epidermis continue to bind to each other. This leads to itching, hive-like wheals, and tense fluid-filled bullae.

The differential diagnosis of an acute or semi-acute bullous disease includes bullous pemphigoid, IgA pemphigoid, linear IgA bullous dermatosis, epidermolysis bullosa acquisita, and Senear-Usher syndrome. In this case, the large tense bullae suggested bullous pemphigoid over the other diagnoses.

Initial diagnosis requires 2 biopsies be performed: One at the edge of a bulla for a standard pathologic exam to identify the skin level at which the bulla is forming, and another biopsy of skin near the site of inflammation (5-10 mm away) to be sent for direct immunofluorescence (DIF) in Michel’s medium or Zeus medium. In bullous pemphigoid, the separation is at the dermal-epidermal junction, and IgG and C3 are found in the DIF in the same location. There are a couple ways to differentiate this disorder from epidermolysis bullosa acquisita—a similar blistering disorder in which autoantibodies attack collagen at the dermal-epidermal junction. A common approach is to send a patient’s serum for indirect immunofluorescence. This is done because it is impossible to distinguish between the 2 clinically.

While bullous pemphigoid has historically been treated with high-dose prednisone, it is more common now to treat with whole-body topical clobetasol and oral doxycycline 100 mg twice a day to avoid the adverse effects of the prednisone. Other immunosuppressive options, such as mycophenolate mofetil and cyclosporine, can provide the potency of prednisone with a more favorable long-term safety profile. Rituximab infusions are another very powerful and durable option in refractory or severe cases.¹

This patient was treated with topical clobetasol and doxycycline 100 mg twice a day, but he had incomplete clearance after 2 to 3 weeks. At that point, mycophenolate mofetil was added to the regimen and was titrated up to 1000 mg twice daily. When clearance occurred, the clobetasol was discontinued and the mycophenolate mofetil was titrated down to 250 mg/d; the patient continues to maintain clearance at this dose. He continues on doxycycline 100 mg bid.

‌

Photos and text for Photo Rounds Friday courtesy of Jonathan Karnes, MD (copyright retained). Dr. Karnes is the medical director of MDFMR Dermatology Services, Augusta, ME.

This patient was given a diagnosis of bullous pemphigoid. Although there were a number of clues that pointed to this diagnosis, confirming that this was the case required 2 biopsies and a blood draw. (More on this in a bit.)

Although rare and potentially lethal, bullous pemphigoid is the most common autoimmune blistering disease in the elderly. Patients present with tense bullae over limited or widespread areas of the skin. The pathogenesis includes development of autoimmune antibodies that target important proteins (BP180 and BP230) that bind basal epidermal keratinocytes to the dermis. When weakened by inflammation at these sites, the skin delaminates at the dermal-epidermal junction, while the cells of the epidermis continue to bind to each other. This leads to itching, hive-like wheals, and tense fluid-filled bullae.

The differential diagnosis of an acute or semi-acute bullous disease includes bullous pemphigoid, IgA pemphigoid, linear IgA bullous dermatosis, epidermolysis bullosa acquisita, and Senear-Usher syndrome. In this case, the large tense bullae suggested bullous pemphigoid over the other diagnoses.

Initial diagnosis requires 2 biopsies be performed: One at the edge of a bulla for a standard pathologic exam to identify the skin level at which the bulla is forming, and another biopsy of skin near the site of inflammation (5-10 mm away) to be sent for direct immunofluorescence (DIF) in Michel’s medium or Zeus medium. In bullous pemphigoid, the separation is at the dermal-epidermal junction, and IgG and C3 are found in the DIF in the same location. There are a couple ways to differentiate this disorder from epidermolysis bullosa acquisita—a similar blistering disorder in which autoantibodies attack collagen at the dermal-epidermal junction. A common approach is to send a patient’s serum for indirect immunofluorescence. This is done because it is impossible to distinguish between the 2 clinically.

While bullous pemphigoid has historically been treated with high-dose prednisone, it is more common now to treat with whole-body topical clobetasol and oral doxycycline 100 mg twice a day to avoid the adverse effects of the prednisone. Other immunosuppressive options, such as mycophenolate mofetil and cyclosporine, can provide the potency of prednisone with a more favorable long-term safety profile. Rituximab infusions are another very powerful and durable option in refractory or severe cases.¹

This patient was treated with topical clobetasol and doxycycline 100 mg twice a day, but he had incomplete clearance after 2 to 3 weeks. At that point, mycophenolate mofetil was added to the regimen and was titrated up to 1000 mg twice daily. When clearance occurred, the clobetasol was discontinued and the mycophenolate mofetil was titrated down to 250 mg/d; the patient continues to maintain clearance at this dose. He continues on doxycycline 100 mg bid.

‌

Photos and text for Photo Rounds Friday courtesy of Jonathan Karnes, MD (copyright retained). Dr. Karnes is the medical director of MDFMR Dermatology Services, Augusta, ME.

Dermoscopy revealed an 8-mm scaly brown-black papule that lacked melanocytic features (pigment network, globules, streaks, or homogeneous blue or brown color) but had milia-like cysts and so-called “fat fingers” (short, straight to curved radial projections¹). These findings were consistent with a diagnosis of seborrheic keratosis (SK).

SKs go by many names and are often confused with nevi. Some patients might know them by such names as “age spots” or “liver spots.” Patients often have many SKs on their body; the back and skin folds are common locations. Patients may be unhappy about the way they look and may describe occasional discomfort when the SKs rub against clothes and inflammation that occurs spontaneously or with trauma.

Classic SKs have a well-demarcated border and waxy, stuck-on appearance. There are times when it is difficult to distinguish between an SK and a melanocytic lesion. Thus, a biopsy may be necessary. In addition, SKs are so common that collision lesions may occur. (Collision lesions result when 2 histologically distinct neoplasms occur adjacent to each other and cause an unusual clinical appearance with features of each lesion.) The atypical clinical features in a collision lesion may prompt a biopsy to exclude malignancy.

Dermoscopic features of SKs include well-demarcated borders, milia-like cysts (white circular inclusions), comedo-like openings (brown/black circular inclusions), fissures and ridges, hairpin vessels, and fat fingers.

Cryotherapy is a quick and efficient treatment when a patient would like the lesions removed. Curettage or light electrodessication may be less likely to cause post-inflammatory hypopigmentation in patients with darker skin types. These various destructive therapies are often considered cosmetic and are unlikely to be covered by insurance unless there is documentation of significant inflammation or discomfort. In this case, the lesion was not treated.

‌

Photos and text for Photo Rounds Friday courtesy of Jonathan Karnes, MD (copyright retained). Dr. Karnes is the medical director of MDFMR Dermatology Services, Augusta, ME.

Dermoscopy revealed an 8-mm scaly brown-black papule that lacked melanocytic features (pigment network, globules, streaks, or homogeneous blue or brown color) but had milia-like cysts and so-called “fat fingers” (short, straight to curved radial projections¹). These findings were consistent with a diagnosis of seborrheic keratosis (SK).

SKs go by many names and are often confused with nevi. Some patients might know them by such names as “age spots” or “liver spots.” Patients often have many SKs on their body; the back and skin folds are common locations. Patients may be unhappy about the way they look and may describe occasional discomfort when the SKs rub against clothes and inflammation that occurs spontaneously or with trauma.

Classic SKs have a well-demarcated border and waxy, stuck-on appearance. There are times when it is difficult to distinguish between an SK and a melanocytic lesion. Thus, a biopsy may be necessary. In addition, SKs are so common that collision lesions may occur. (Collision lesions result when 2 histologically distinct neoplasms occur adjacent to each other and cause an unusual clinical appearance with features of each lesion.) The atypical clinical features in a collision lesion may prompt a biopsy to exclude malignancy.

Dermoscopic features of SKs include well-demarcated borders, milia-like cysts (white circular inclusions), comedo-like openings (brown/black circular inclusions), fissures and ridges, hairpin vessels, and fat fingers.

Cryotherapy is a quick and efficient treatment when a patient would like the lesions removed. Curettage or light electrodessication may be less likely to cause post-inflammatory hypopigmentation in patients with darker skin types. These various destructive therapies are often considered cosmetic and are unlikely to be covered by insurance unless there is documentation of significant inflammation or discomfort. In this case, the lesion was not treated.

‌

Photos and text for Photo Rounds Friday courtesy of Jonathan Karnes, MD (copyright retained). Dr. Karnes is the medical director of MDFMR Dermatology Services, Augusta, ME.

Dermoscopy revealed an 8-mm scaly brown-black papule that lacked melanocytic features (pigment network, globules, streaks, or homogeneous blue or brown color) but had milia-like cysts and so-called “fat fingers” (short, straight to curved radial projections¹). These findings were consistent with a diagnosis of seborrheic keratosis (SK).

SKs go by many names and are often confused with nevi. Some patients might know them by such names as “age spots” or “liver spots.” Patients often have many SKs on their body; the back and skin folds are common locations. Patients may be unhappy about the way they look and may describe occasional discomfort when the SKs rub against clothes and inflammation that occurs spontaneously or with trauma.

Classic SKs have a well-demarcated border and waxy, stuck-on appearance. There are times when it is difficult to distinguish between an SK and a melanocytic lesion. Thus, a biopsy may be necessary. In addition, SKs are so common that collision lesions may occur. (Collision lesions result when 2 histologically distinct neoplasms occur adjacent to each other and cause an unusual clinical appearance with features of each lesion.) The atypical clinical features in a collision lesion may prompt a biopsy to exclude malignancy.

Dermoscopic features of SKs include well-demarcated borders, milia-like cysts (white circular inclusions), comedo-like openings (brown/black circular inclusions), fissures and ridges, hairpin vessels, and fat fingers.

Cryotherapy is a quick and efficient treatment when a patient would like the lesions removed. Curettage or light electrodessication may be less likely to cause post-inflammatory hypopigmentation in patients with darker skin types. These various destructive therapies are often considered cosmetic and are unlikely to be covered by insurance unless there is documentation of significant inflammation or discomfort. In this case, the lesion was not treated.

‌

Photos and text for Photo Rounds Friday courtesy of Jonathan Karnes, MD (copyright retained). Dr. Karnes is the medical director of MDFMR Dermatology Services, Augusta, ME.

A 48-year-old woman with a history of systemic lupus erythematosus (SLE) presented to the emergency department from the rheumatology clinic for digital ischemia. The clinical manifestations of her SLE consisted predominantly of arthralgias, which had been previously well controlled on hydroxychloroquine 300 mg/d PO. On presentation, she denied oral ulcers, alopecia, shortness of breath, chest pain/pressure, and history of blood clots or miscarriages. 

On exam, the patient was afebrile and had a heart rate of 74 bpm; blood pressure, 140/77 mm Hg; and respiratory rate, 18 breaths/min. The fingertips on her left hand were tender and cool to the touch, and the fingertips of her second through fifth digits were blue (FIGURE).

Laboratory workup was notable for the following: hemoglobin, 9.3 g/dL (normal range, 11.6-15.2 g/dL) and erythrocyte sedimentation rate, 44 mm/h (normal range, ≤ 25 mm/h). Double-stranded DNA and complement levels were normal.

Transthoracic echocardiogram did not show any valvular vegetations, and blood cultures from admission were negative. Computed tomography angiography (CTA) with contrast of her left upper extremity showed a filling defect in the origin of the left subclavian artery. Digital plethysmography showed dampened flow signals in the second through fifth digits of the left hand.

Tests for antiphospholipid antibodies were positive for lupus anticoagulant; there were also high titers of anti-β-2-glycoprotein immunoglobulin (Ig) G (58 SGU; normal, ≤ 20 SGU) and anticardiolipin IgG (242.4 CU; normal, ≤ 20 CU).

WHAT IS YOUR DIAGNOSIS?
HOW WOULD YOU TREAT THIS PATIENT?

Given our patient’s SLE, left subclavian artery thrombosis, digital ischemia, and high-titer antiphospholipid antibodies, we had significant concern for antiphospholipid syndrome (APS). The diagnosis of APS is most often based on the fulfillment of the revised ­Sapporo classification criteria. These criteria include both clinical criteria (vascular thrombosis or pregnancy morbidity) and laboratory criteria (the presence of antiphospholipid antibodies on at least 2 separate occasions separated by 12 weeks).¹ Our patient met clinical criteria given the evidence of subclavian artery thrombosis on CTA as well as digital plethysmography findings consistent with digital emboli. To meet laboratory criteria, she would have needed to have persistent high-titer antiphospholipid antibodies 12 weeks apart.

Previous studies have estimated that 30% to 50% of patients with SLE who test positive for antiphospholipid antibodies will develop thrombosis.

APS is an autoimmune disease in which the presence of antiphospholipid antibodies is associated with thrombosis; it can be divided into primary and secondary APS. The estimated prevalence of APS is 50 per 100,000 people in the United States.² Primary APS occurs in the absence of an underlying autoimmune disease, while secondary APS occurs in the presence of an underlying autoimmune disease.

The autoimmune disease most often associated with APS is SLE.³ Among patients with SLE, 15% to 34% have positive lupus anticoagulant and 12% to 30% have anticardio­lipin antibodies.^4-6 This is compared with young healthy subjects among whom only 1% to 4% have positive lupus anticoagulant and 1% to 5% have anticardiolipin antibodies.⁷ Previous studies have estimated that 30% to 50% of patients with SLE who test positive for antiphospholipid antibodies will develop thrombosis.^5,7

Differential includes Raynaud phenomenon, vasculitis

The differential diagnosis for digital ischemia in a patient with SLE includes APS, Raynaud phenomenon, vasculitis, and septic emboli.

Raynaud phenomenon can manifest in patients with SLE, but the presence of thrombosis on CTA and high-titer positive antiphospholipid antibodies make the diagnosis of APS more likely. Additionally, Raynaud phenomenon is typically temperature dependent with vasospasm in the digital arteries, occurring in cold temperatures and resolving with warming.

Systemic vasculitis may develop in patients with SLE, but in our case was less likely given the patient did not have any evidence of vasculitis on CTA, such as blood vessel wall thickening and/or enhancement.⁸

Septic emboli from endocarditis can cause digital ischemia but is typically associated with positive blood cultures, fever, and other systemic signs of infection, and/or vegetations on an echocardiogram.

Continue to: Thrombosis determines intensity of lifelong antiocagulation Tx

The mainstay of therapy for patients with APS is lifelong anticoagulation with a vitamin K antagonist. The intensity of anticoagulation is determined based on the presence of venous or arterial thrombosis. In patients who present with arterial thrombosis, a higher intensity vitamin K antagonist (ie, international normalized ratio [INR] goal > 3) or the addition of low-dose aspirin should be considered.^9,10

Factor Xa inhibitors are generally not recommended at this time due to the lack of evidence to support their use.¹⁰ Additionally, a randomized clinical trial comparing rivaroxaban and warfarin in patients with triple antiphospholipid antibody positivity was terminated prematurely due to increased thromboembolic events in the rivaroxaban arm.¹¹

For patients with secondary APS in the setting of SLE, hydroxychloroquine in combination with a vitamin K antagonist has been shown to decrease the risk for recurrent thrombosis compared with treatment with a vitamin K antagonist alone.¹²

Our patient was started on a heparin drip and transitioned to an oral vitamin K antagonist with an INR goal of 2 to 3. Lifelong anticoagulation was planned. The pain and discoloration in her hands improved on anticoagulation and had nearly resolved by the time of discharge. Given her history of arterial thrombosis, the addition of aspirin was also considered, but this decision was ultimately deferred to her outpatient rheumatologist and hematologist.

A 48-year-old woman with a history of systemic lupus erythematosus (SLE) presented to the emergency department from the rheumatology clinic for digital ischemia. The clinical manifestations of her SLE consisted predominantly of arthralgias, which had been previously well controlled on hydroxychloroquine 300 mg/d PO. On presentation, she denied oral ulcers, alopecia, shortness of breath, chest pain/pressure, and history of blood clots or miscarriages. 

On exam, the patient was afebrile and had a heart rate of 74 bpm; blood pressure, 140/77 mm Hg; and respiratory rate, 18 breaths/min. The fingertips on her left hand were tender and cool to the touch, and the fingertips of her second through fifth digits were blue (FIGURE).

Laboratory workup was notable for the following: hemoglobin, 9.3 g/dL (normal range, 11.6-15.2 g/dL) and erythrocyte sedimentation rate, 44 mm/h (normal range, ≤ 25 mm/h). Double-stranded DNA and complement levels were normal.

Transthoracic echocardiogram did not show any valvular vegetations, and blood cultures from admission were negative. Computed tomography angiography (CTA) with contrast of her left upper extremity showed a filling defect in the origin of the left subclavian artery. Digital plethysmography showed dampened flow signals in the second through fifth digits of the left hand.

Tests for antiphospholipid antibodies were positive for lupus anticoagulant; there were also high titers of anti-β-2-glycoprotein immunoglobulin (Ig) G (58 SGU; normal, ≤ 20 SGU) and anticardiolipin IgG (242.4 CU; normal, ≤ 20 CU).

WHAT IS YOUR DIAGNOSIS?
HOW WOULD YOU TREAT THIS PATIENT?

Given our patient’s SLE, left subclavian artery thrombosis, digital ischemia, and high-titer antiphospholipid antibodies, we had significant concern for antiphospholipid syndrome (APS). The diagnosis of APS is most often based on the fulfillment of the revised ­Sapporo classification criteria. These criteria include both clinical criteria (vascular thrombosis or pregnancy morbidity) and laboratory criteria (the presence of antiphospholipid antibodies on at least 2 separate occasions separated by 12 weeks).¹ Our patient met clinical criteria given the evidence of subclavian artery thrombosis on CTA as well as digital plethysmography findings consistent with digital emboli. To meet laboratory criteria, she would have needed to have persistent high-titer antiphospholipid antibodies 12 weeks apart.

Previous studies have estimated that 30% to 50% of patients with SLE who test positive for antiphospholipid antibodies will develop thrombosis.

APS is an autoimmune disease in which the presence of antiphospholipid antibodies is associated with thrombosis; it can be divided into primary and secondary APS. The estimated prevalence of APS is 50 per 100,000 people in the United States.² Primary APS occurs in the absence of an underlying autoimmune disease, while secondary APS occurs in the presence of an underlying autoimmune disease.

The autoimmune disease most often associated with APS is SLE.³ Among patients with SLE, 15% to 34% have positive lupus anticoagulant and 12% to 30% have anticardio­lipin antibodies.^4-6 This is compared with young healthy subjects among whom only 1% to 4% have positive lupus anticoagulant and 1% to 5% have anticardiolipin antibodies.⁷ Previous studies have estimated that 30% to 50% of patients with SLE who test positive for antiphospholipid antibodies will develop thrombosis.^5,7

Differential includes Raynaud phenomenon, vasculitis

The differential diagnosis for digital ischemia in a patient with SLE includes APS, Raynaud phenomenon, vasculitis, and septic emboli.

Raynaud phenomenon can manifest in patients with SLE, but the presence of thrombosis on CTA and high-titer positive antiphospholipid antibodies make the diagnosis of APS more likely. Additionally, Raynaud phenomenon is typically temperature dependent with vasospasm in the digital arteries, occurring in cold temperatures and resolving with warming.

Systemic vasculitis may develop in patients with SLE, but in our case was less likely given the patient did not have any evidence of vasculitis on CTA, such as blood vessel wall thickening and/or enhancement.⁸

Septic emboli from endocarditis can cause digital ischemia but is typically associated with positive blood cultures, fever, and other systemic signs of infection, and/or vegetations on an echocardiogram.

Continue to: Thrombosis determines intensity of lifelong antiocagulation Tx

The mainstay of therapy for patients with APS is lifelong anticoagulation with a vitamin K antagonist. The intensity of anticoagulation is determined based on the presence of venous or arterial thrombosis. In patients who present with arterial thrombosis, a higher intensity vitamin K antagonist (ie, international normalized ratio [INR] goal > 3) or the addition of low-dose aspirin should be considered.^9,10

Factor Xa inhibitors are generally not recommended at this time due to the lack of evidence to support their use.¹⁰ Additionally, a randomized clinical trial comparing rivaroxaban and warfarin in patients with triple antiphospholipid antibody positivity was terminated prematurely due to increased thromboembolic events in the rivaroxaban arm.¹¹

For patients with secondary APS in the setting of SLE, hydroxychloroquine in combination with a vitamin K antagonist has been shown to decrease the risk for recurrent thrombosis compared with treatment with a vitamin K antagonist alone.¹²

Our patient was started on a heparin drip and transitioned to an oral vitamin K antagonist with an INR goal of 2 to 3. Lifelong anticoagulation was planned. The pain and discoloration in her hands improved on anticoagulation and had nearly resolved by the time of discharge. Given her history of arterial thrombosis, the addition of aspirin was also considered, but this decision was ultimately deferred to her outpatient rheumatologist and hematologist.

A 48-year-old woman with a history of systemic lupus erythematosus (SLE) presented to the emergency department from the rheumatology clinic for digital ischemia. The clinical manifestations of her SLE consisted predominantly of arthralgias, which had been previously well controlled on hydroxychloroquine 300 mg/d PO. On presentation, she denied oral ulcers, alopecia, shortness of breath, chest pain/pressure, and history of blood clots or miscarriages. 

On exam, the patient was afebrile and had a heart rate of 74 bpm; blood pressure, 140/77 mm Hg; and respiratory rate, 18 breaths/min. The fingertips on her left hand were tender and cool to the touch, and the fingertips of her second through fifth digits were blue (FIGURE).

Laboratory workup was notable for the following: hemoglobin, 9.3 g/dL (normal range, 11.6-15.2 g/dL) and erythrocyte sedimentation rate, 44 mm/h (normal range, ≤ 25 mm/h). Double-stranded DNA and complement levels were normal.

Transthoracic echocardiogram did not show any valvular vegetations, and blood cultures from admission were negative. Computed tomography angiography (CTA) with contrast of her left upper extremity showed a filling defect in the origin of the left subclavian artery. Digital plethysmography showed dampened flow signals in the second through fifth digits of the left hand.

Tests for antiphospholipid antibodies were positive for lupus anticoagulant; there were also high titers of anti-β-2-glycoprotein immunoglobulin (Ig) G (58 SGU; normal, ≤ 20 SGU) and anticardiolipin IgG (242.4 CU; normal, ≤ 20 CU).

WHAT IS YOUR DIAGNOSIS?
HOW WOULD YOU TREAT THIS PATIENT?

Given our patient’s SLE, left subclavian artery thrombosis, digital ischemia, and high-titer antiphospholipid antibodies, we had significant concern for antiphospholipid syndrome (APS). The diagnosis of APS is most often based on the fulfillment of the revised ­Sapporo classification criteria. These criteria include both clinical criteria (vascular thrombosis or pregnancy morbidity) and laboratory criteria (the presence of antiphospholipid antibodies on at least 2 separate occasions separated by 12 weeks).¹ Our patient met clinical criteria given the evidence of subclavian artery thrombosis on CTA as well as digital plethysmography findings consistent with digital emboli. To meet laboratory criteria, she would have needed to have persistent high-titer antiphospholipid antibodies 12 weeks apart.

Previous studies have estimated that 30% to 50% of patients with SLE who test positive for antiphospholipid antibodies will develop thrombosis.

APS is an autoimmune disease in which the presence of antiphospholipid antibodies is associated with thrombosis; it can be divided into primary and secondary APS. The estimated prevalence of APS is 50 per 100,000 people in the United States.² Primary APS occurs in the absence of an underlying autoimmune disease, while secondary APS occurs in the presence of an underlying autoimmune disease.

The autoimmune disease most often associated with APS is SLE.³ Among patients with SLE, 15% to 34% have positive lupus anticoagulant and 12% to 30% have anticardio­lipin antibodies.^4-6 This is compared with young healthy subjects among whom only 1% to 4% have positive lupus anticoagulant and 1% to 5% have anticardiolipin antibodies.⁷ Previous studies have estimated that 30% to 50% of patients with SLE who test positive for antiphospholipid antibodies will develop thrombosis.^5,7

Differential includes Raynaud phenomenon, vasculitis

The differential diagnosis for digital ischemia in a patient with SLE includes APS, Raynaud phenomenon, vasculitis, and septic emboli.

Raynaud phenomenon can manifest in patients with SLE, but the presence of thrombosis on CTA and high-titer positive antiphospholipid antibodies make the diagnosis of APS more likely. Additionally, Raynaud phenomenon is typically temperature dependent with vasospasm in the digital arteries, occurring in cold temperatures and resolving with warming.

Systemic vasculitis may develop in patients with SLE, but in our case was less likely given the patient did not have any evidence of vasculitis on CTA, such as blood vessel wall thickening and/or enhancement.⁸

Septic emboli from endocarditis can cause digital ischemia but is typically associated with positive blood cultures, fever, and other systemic signs of infection, and/or vegetations on an echocardiogram.

Continue to: Thrombosis determines intensity of lifelong antiocagulation Tx

The mainstay of therapy for patients with APS is lifelong anticoagulation with a vitamin K antagonist. The intensity of anticoagulation is determined based on the presence of venous or arterial thrombosis. In patients who present with arterial thrombosis, a higher intensity vitamin K antagonist (ie, international normalized ratio [INR] goal > 3) or the addition of low-dose aspirin should be considered.^9,10

Factor Xa inhibitors are generally not recommended at this time due to the lack of evidence to support their use.¹⁰ Additionally, a randomized clinical trial comparing rivaroxaban and warfarin in patients with triple antiphospholipid antibody positivity was terminated prematurely due to increased thromboembolic events in the rivaroxaban arm.¹¹

For patients with secondary APS in the setting of SLE, hydroxychloroquine in combination with a vitamin K antagonist has been shown to decrease the risk for recurrent thrombosis compared with treatment with a vitamin K antagonist alone.¹²

Our patient was started on a heparin drip and transitioned to an oral vitamin K antagonist with an INR goal of 2 to 3. Lifelong anticoagulation was planned. The pain and discoloration in her hands improved on anticoagulation and had nearly resolved by the time of discharge. Given her history of arterial thrombosis, the addition of aspirin was also considered, but this decision was ultimately deferred to her outpatient rheumatologist and hematologist.

An 81-year-old man was admitted to our skilled nursing facility (SNF) after hospitalization for an acute kidney injury secondary to bladder outflow obstruction. While at the hospital, he received hemodialysis for the acute kidney injury, underwent transurethral resection of the prostate for benign prostatic hyperplasia (BPH), and had lithotripsy for nephrolithiasis. He was admitted to our SNF with an indwelling urinary catheter that had been placed 3 days prior to discharge from the hospital for urinary retention and a serum creatinine level of 3.28 mg/dL (normal range, 0.7-1.3 mg/dL [male]). Four days after his admission, the nursing staff reported acute onset of purple urine in his catheter and collection bag (FIGURE).

Physical examination revealed an older man whose vital signs were normal and who had a regular heart rate and rhythm. He denied any pain, and his abdomen was soft and nontender with normal bowel sounds. There was no suprapubic or costovertebral angle tenderness, and his urinary catheter was correctly placed. His urine output was within normal limits, but the urine in the catheter and collection bag was purple.

The patient’s medical history was remarkable for mild cognitive impairment, BPH, and hypertension. A urine culture was significant for > 100,000 CFU/mL pan-sensitive Pseudomonas aeruginosa.

WHAT IS YOUR DIAGNOSIS?
HOW WOULD YOU TREAT THIS PATIENT?

The diagnosis of purple urine bag syndrome (PUBS) was made based on the patient’s clinical presentation and medical history. PUBS is generally a benign condition that can occur in patients who have urinary catheters for prolonged periods of time and urinary tract infections (UTIs), often with ­constipation.¹

PUBS was first described in the literature in 1978.² Its prevalence has been estimated to be 9.8% in long-term wards and higher in patients with chronic catheters.^3-5 PUBS is reported more often in institutionalized older women, although it has been documented in men as well.¹ Risk factors include having a chronic indwelling urinary catheter; alkaline urine; the use of plastic, polyvinylchloride urine bags³; chronic constipation⁶; renal failure^4,5; and dementia.¹ In many cases, patients with PUBS have been found to have stable vitals and lack systemic symptoms, such as fever, that could indicate an infection.^1,5

Some studies suggest that simply exchanging the catheter may resolve PUBS, particularly in asymptomatic patients.

The pathogenesis of PUBS has been associated with tryptophan.³ Gut bacteria metabolize tryptophan to indole, which is converted to indoxyl sulfate in the liver.^3,7 Then certain bacteria associated with UTIs, including Pseudomonas, Escherichia coli, Proteus mirabilis, Providencia spp, Enterococcus faecalis, and Klebsiella,^5-7 which contain indoxyl phosphatase and sulfatase enzymes, can convert indoxyl sulfate into indirubin (red) and indigo (blue) compounds; this results in a purple hue in the urine seen in a Foley catheter and bag.

Differential is generally limited to medication and food consumption

Clinical presentation and a detailed history and review of medication and/or food ingestion may distinguish PUBS from other conditions.

Medications and foods, such as rifampicin or beets, may discolor urine and need to be ruled out as a cause with a thorough history.³

Cyanide toxicity in those taking vitamin B₁₂can result in purple-tinged urine.⁸ Signs and symptoms can alsoinclude reddening of the skin, dyspnea, nausea, headache, erythema at the injection site, and a modest increase in blood pressure.⁸

Identify the infection and treat as needed

There have been some case reports regarding the progression of PUBS to Fournier gangrene,⁴ but such cases are rare and associated with immunocompromised patients.⁹ PUBS is generally a benign condition associated with UTIs. Management involves identifying the underlying infection, treating with antibiotics if indicated (ie, patient is symptomatic or immunocompromised),³ providing proper treatment of constipation if needed, and replacing the Foley catheter.⁴ Some studies suggest that simply exchanging the catheter may resolve PUBS, particularly in asymptomatic patients.⁵

In light of his complicated urologic history, our patient was treated with a 10-day course of renally dosed intravenous cefepime (500 mg every 24 hours based on calculated creatine clearance of 21 mL/min) and Foley exchange. The patient’s urine color returned to normal after Foley exchange and 24 hours of antibiotics. His kidney function continued to improve and normalized by the time he was discharged from the facility approximately 2 weeks later.

An 81-year-old man was admitted to our skilled nursing facility (SNF) after hospitalization for an acute kidney injury secondary to bladder outflow obstruction. While at the hospital, he received hemodialysis for the acute kidney injury, underwent transurethral resection of the prostate for benign prostatic hyperplasia (BPH), and had lithotripsy for nephrolithiasis. He was admitted to our SNF with an indwelling urinary catheter that had been placed 3 days prior to discharge from the hospital for urinary retention and a serum creatinine level of 3.28 mg/dL (normal range, 0.7-1.3 mg/dL [male]). Four days after his admission, the nursing staff reported acute onset of purple urine in his catheter and collection bag (FIGURE).

Physical examination revealed an older man whose vital signs were normal and who had a regular heart rate and rhythm. He denied any pain, and his abdomen was soft and nontender with normal bowel sounds. There was no suprapubic or costovertebral angle tenderness, and his urinary catheter was correctly placed. His urine output was within normal limits, but the urine in the catheter and collection bag was purple.

The patient’s medical history was remarkable for mild cognitive impairment, BPH, and hypertension. A urine culture was significant for > 100,000 CFU/mL pan-sensitive Pseudomonas aeruginosa.

WHAT IS YOUR DIAGNOSIS?
HOW WOULD YOU TREAT THIS PATIENT?

The diagnosis of purple urine bag syndrome (PUBS) was made based on the patient’s clinical presentation and medical history. PUBS is generally a benign condition that can occur in patients who have urinary catheters for prolonged periods of time and urinary tract infections (UTIs), often with ­constipation.¹

PUBS was first described in the literature in 1978.² Its prevalence has been estimated to be 9.8% in long-term wards and higher in patients with chronic catheters.^3-5 PUBS is reported more often in institutionalized older women, although it has been documented in men as well.¹ Risk factors include having a chronic indwelling urinary catheter; alkaline urine; the use of plastic, polyvinylchloride urine bags³; chronic constipation⁶; renal failure^4,5; and dementia.¹ In many cases, patients with PUBS have been found to have stable vitals and lack systemic symptoms, such as fever, that could indicate an infection.^1,5

Some studies suggest that simply exchanging the catheter may resolve PUBS, particularly in asymptomatic patients.

The pathogenesis of PUBS has been associated with tryptophan.³ Gut bacteria metabolize tryptophan to indole, which is converted to indoxyl sulfate in the liver.^3,7 Then certain bacteria associated with UTIs, including Pseudomonas, Escherichia coli, Proteus mirabilis, Providencia spp, Enterococcus faecalis, and Klebsiella,^5-7 which contain indoxyl phosphatase and sulfatase enzymes, can convert indoxyl sulfate into indirubin (red) and indigo (blue) compounds; this results in a purple hue in the urine seen in a Foley catheter and bag.

Differential is generally limited to medication and food consumption

Clinical presentation and a detailed history and review of medication and/or food ingestion may distinguish PUBS from other conditions.

Medications and foods, such as rifampicin or beets, may discolor urine and need to be ruled out as a cause with a thorough history.³

Cyanide toxicity in those taking vitamin B₁₂can result in purple-tinged urine.⁸ Signs and symptoms can alsoinclude reddening of the skin, dyspnea, nausea, headache, erythema at the injection site, and a modest increase in blood pressure.⁸

Identify the infection and treat as needed

There have been some case reports regarding the progression of PUBS to Fournier gangrene,⁴ but such cases are rare and associated with immunocompromised patients.⁹ PUBS is generally a benign condition associated with UTIs. Management involves identifying the underlying infection, treating with antibiotics if indicated (ie, patient is symptomatic or immunocompromised),³ providing proper treatment of constipation if needed, and replacing the Foley catheter.⁴ Some studies suggest that simply exchanging the catheter may resolve PUBS, particularly in asymptomatic patients.⁵

In light of his complicated urologic history, our patient was treated with a 10-day course of renally dosed intravenous cefepime (500 mg every 24 hours based on calculated creatine clearance of 21 mL/min) and Foley exchange. The patient’s urine color returned to normal after Foley exchange and 24 hours of antibiotics. His kidney function continued to improve and normalized by the time he was discharged from the facility approximately 2 weeks later.

An 81-year-old man was admitted to our skilled nursing facility (SNF) after hospitalization for an acute kidney injury secondary to bladder outflow obstruction. While at the hospital, he received hemodialysis for the acute kidney injury, underwent transurethral resection of the prostate for benign prostatic hyperplasia (BPH), and had lithotripsy for nephrolithiasis. He was admitted to our SNF with an indwelling urinary catheter that had been placed 3 days prior to discharge from the hospital for urinary retention and a serum creatinine level of 3.28 mg/dL (normal range, 0.7-1.3 mg/dL [male]). Four days after his admission, the nursing staff reported acute onset of purple urine in his catheter and collection bag (FIGURE).

Physical examination revealed an older man whose vital signs were normal and who had a regular heart rate and rhythm. He denied any pain, and his abdomen was soft and nontender with normal bowel sounds. There was no suprapubic or costovertebral angle tenderness, and his urinary catheter was correctly placed. His urine output was within normal limits, but the urine in the catheter and collection bag was purple.

The patient’s medical history was remarkable for mild cognitive impairment, BPH, and hypertension. A urine culture was significant for > 100,000 CFU/mL pan-sensitive Pseudomonas aeruginosa.

WHAT IS YOUR DIAGNOSIS?
HOW WOULD YOU TREAT THIS PATIENT?

The diagnosis of purple urine bag syndrome (PUBS) was made based on the patient’s clinical presentation and medical history. PUBS is generally a benign condition that can occur in patients who have urinary catheters for prolonged periods of time and urinary tract infections (UTIs), often with ­constipation.¹

PUBS was first described in the literature in 1978.² Its prevalence has been estimated to be 9.8% in long-term wards and higher in patients with chronic catheters.^3-5 PUBS is reported more often in institutionalized older women, although it has been documented in men as well.¹ Risk factors include having a chronic indwelling urinary catheter; alkaline urine; the use of plastic, polyvinylchloride urine bags³; chronic constipation⁶; renal failure^4,5; and dementia.¹ In many cases, patients with PUBS have been found to have stable vitals and lack systemic symptoms, such as fever, that could indicate an infection.^1,5

Some studies suggest that simply exchanging the catheter may resolve PUBS, particularly in asymptomatic patients.

The pathogenesis of PUBS has been associated with tryptophan.³ Gut bacteria metabolize tryptophan to indole, which is converted to indoxyl sulfate in the liver.^3,7 Then certain bacteria associated with UTIs, including Pseudomonas, Escherichia coli, Proteus mirabilis, Providencia spp, Enterococcus faecalis, and Klebsiella,^5-7 which contain indoxyl phosphatase and sulfatase enzymes, can convert indoxyl sulfate into indirubin (red) and indigo (blue) compounds; this results in a purple hue in the urine seen in a Foley catheter and bag.

Differential is generally limited to medication and food consumption

Clinical presentation and a detailed history and review of medication and/or food ingestion may distinguish PUBS from other conditions.

Medications and foods, such as rifampicin or beets, may discolor urine and need to be ruled out as a cause with a thorough history.³

Cyanide toxicity in those taking vitamin B₁₂can result in purple-tinged urine.⁸ Signs and symptoms can alsoinclude reddening of the skin, dyspnea, nausea, headache, erythema at the injection site, and a modest increase in blood pressure.⁸

Identify the infection and treat as needed

There have been some case reports regarding the progression of PUBS to Fournier gangrene,⁴ but such cases are rare and associated with immunocompromised patients.⁹ PUBS is generally a benign condition associated with UTIs. Management involves identifying the underlying infection, treating with antibiotics if indicated (ie, patient is symptomatic or immunocompromised),³ providing proper treatment of constipation if needed, and replacing the Foley catheter.⁴ Some studies suggest that simply exchanging the catheter may resolve PUBS, particularly in asymptomatic patients.⁵

In light of his complicated urologic history, our patient was treated with a 10-day course of renally dosed intravenous cefepime (500 mg every 24 hours based on calculated creatine clearance of 21 mL/min) and Foley exchange. The patient’s urine color returned to normal after Foley exchange and 24 hours of antibiotics. His kidney function continued to improve and normalized by the time he was discharged from the facility approximately 2 weeks later.

This patient had erythroderma, which involves widespread erythema and scaling of the majority of the skin. Erythroderma can be caused by severe variants of several skin disorders, including atopic dermatitis, contact dermatitis, and psoriasis. In this case, a punch biopsy from the forearm was most consistent with erythrodermic psoriasis.

Erythrodermic psoriasis is a rare subtype of psoriasis and most often develops as an exacerbation of preexisting plaque psoriasis and is defined by erythema, scale, and desquamation covering 75% to 90% of the body surface.¹ The alteration in the skin negatively affects heat exchange and hemodynamics and can be life threatening. Many cases develop as a rebound reaction in patients with preexisting psoriasis treated with systemic steroids that are discontinued. Patients with dehydration, poor urinary output, hypotension, or significant weakness may benefit from supportive inpatient care while treatment is initiated.¹

Initial treatment options for patients with erythrodermic psoriasis include biologics and steroid-sparing immunosuppressants, such as cyclosporine and acitretin. While a patient awaits the initiation of a definitive therapy, topical triamcinolone 0.1% may be applied over the entire skin surface twice daily and covered with 2 layers of scrubs or pajamas. The pair closest to the skin should be slightly damp and the outer pair should be dry to help retain heat. These are referred to as wet wraps or wet pajama wraps.

The patient described here was hemodynamically stable and was allowed to initiate wet pajama wrap therapy at home while awaiting initiation of adalimumab as an outpatient. He has improved dramatically with adalimumab given subcutaneously every 2 weeks.

‌

Photos and text for Photo Rounds Friday courtesy of Jonathan Karnes, MD (copyright retained). Dr. Karnes is the medical director of MDFMR Dermatology Services, Augusta, ME.

This patient had erythroderma, which involves widespread erythema and scaling of the majority of the skin. Erythroderma can be caused by severe variants of several skin disorders, including atopic dermatitis, contact dermatitis, and psoriasis. In this case, a punch biopsy from the forearm was most consistent with erythrodermic psoriasis.

Erythrodermic psoriasis is a rare subtype of psoriasis and most often develops as an exacerbation of preexisting plaque psoriasis and is defined by erythema, scale, and desquamation covering 75% to 90% of the body surface.¹ The alteration in the skin negatively affects heat exchange and hemodynamics and can be life threatening. Many cases develop as a rebound reaction in patients with preexisting psoriasis treated with systemic steroids that are discontinued. Patients with dehydration, poor urinary output, hypotension, or significant weakness may benefit from supportive inpatient care while treatment is initiated.¹

Initial treatment options for patients with erythrodermic psoriasis include biologics and steroid-sparing immunosuppressants, such as cyclosporine and acitretin. While a patient awaits the initiation of a definitive therapy, topical triamcinolone 0.1% may be applied over the entire skin surface twice daily and covered with 2 layers of scrubs or pajamas. The pair closest to the skin should be slightly damp and the outer pair should be dry to help retain heat. These are referred to as wet wraps or wet pajama wraps.

The patient described here was hemodynamically stable and was allowed to initiate wet pajama wrap therapy at home while awaiting initiation of adalimumab as an outpatient. He has improved dramatically with adalimumab given subcutaneously every 2 weeks.

‌

Photos and text for Photo Rounds Friday courtesy of Jonathan Karnes, MD (copyright retained). Dr. Karnes is the medical director of MDFMR Dermatology Services, Augusta, ME.

This patient had erythroderma, which involves widespread erythema and scaling of the majority of the skin. Erythroderma can be caused by severe variants of several skin disorders, including atopic dermatitis, contact dermatitis, and psoriasis. In this case, a punch biopsy from the forearm was most consistent with erythrodermic psoriasis.

Erythrodermic psoriasis is a rare subtype of psoriasis and most often develops as an exacerbation of preexisting plaque psoriasis and is defined by erythema, scale, and desquamation covering 75% to 90% of the body surface.¹ The alteration in the skin negatively affects heat exchange and hemodynamics and can be life threatening. Many cases develop as a rebound reaction in patients with preexisting psoriasis treated with systemic steroids that are discontinued. Patients with dehydration, poor urinary output, hypotension, or significant weakness may benefit from supportive inpatient care while treatment is initiated.¹

Initial treatment options for patients with erythrodermic psoriasis include biologics and steroid-sparing immunosuppressants, such as cyclosporine and acitretin. While a patient awaits the initiation of a definitive therapy, topical triamcinolone 0.1% may be applied over the entire skin surface twice daily and covered with 2 layers of scrubs or pajamas. The pair closest to the skin should be slightly damp and the outer pair should be dry to help retain heat. These are referred to as wet wraps or wet pajama wraps.

The patient described here was hemodynamically stable and was allowed to initiate wet pajama wrap therapy at home while awaiting initiation of adalimumab as an outpatient. He has improved dramatically with adalimumab given subcutaneously every 2 weeks.

‌

Photos and text for Photo Rounds Friday courtesy of Jonathan Karnes, MD (copyright retained). Dr. Karnes is the medical director of MDFMR Dermatology Services, Augusta, ME.

A scoop shave biopsy was performed, including at least a 1-mm margin of normal-looking skin. Pathology was consistent with melanoma in situ.

Melanoma in situ, also called Stage 0 melanoma, is defined by atypical melanocytes that have not begun to invade the dermis and, therefore, have a Breslow thickness of 0 mm. While invasive melanoma is responsible for the largest number of skin cancer deaths in the United States (estimated to be 7990 in 2023), melanoma in situ maintains a very high cure rate when treated appropriately.¹

Dermoscopy can help differentiate melanoma from benign nevi or other benign skin lesions. In this case, dermoscopy revealed a fine pigment network at the periphery that indicated this lesion was made up of melanocytes. There were also atypical vascular markings (the milky red color) in the center. Taken together, these findings were strongly indicative of melanoma.

Standard of care for melanoma in situ is a wide local excision with a margin of 5 to 10 mm. Melanoma in situ does not require sentinel lymph node biopsy. However, a lymph node biopsy would have been necessary if the melanoma had been ≥ 1 mm in thickness or if it had been ≥ 0.8 mm in thickness with higher-risk features, such as an increased number of mitoses per high-power field on pathology. Mohs micrographic surgery (MMS) is emerging as an alternative method to wide local excision to treat melanoma in situ. However, it can only be done in specialized centers that can do rapid immunohistochemical staining on frozen sections. MMS is especially useful in cosmetically sensitive areas of the body and in areas where the true size of the melanoma in situ is unclear.

This patient subsequently underwent a wide local excision in the office with a margin of 6 mm. A sentinel lymph node biopsy was not performed. The patient will continue with skin surveillance consisting of full skin exams 3 to 4 times in the first year of diagnosis, then twice annually for Years 2 to 5. He will then come in for annual skin exams after that.

‌

Photos and text for Photo Rounds Friday courtesy of Jonathan Karnes, MD (copyright retained). Dr. Karnes is the medical director of MDFMR Dermatology Services, Augusta, ME.

A scoop shave biopsy was performed, including at least a 1-mm margin of normal-looking skin. Pathology was consistent with melanoma in situ.

Melanoma in situ, also called Stage 0 melanoma, is defined by atypical melanocytes that have not begun to invade the dermis and, therefore, have a Breslow thickness of 0 mm. While invasive melanoma is responsible for the largest number of skin cancer deaths in the United States (estimated to be 7990 in 2023), melanoma in situ maintains a very high cure rate when treated appropriately.¹

Dermoscopy can help differentiate melanoma from benign nevi or other benign skin lesions. In this case, dermoscopy revealed a fine pigment network at the periphery that indicated this lesion was made up of melanocytes. There were also atypical vascular markings (the milky red color) in the center. Taken together, these findings were strongly indicative of melanoma.

Standard of care for melanoma in situ is a wide local excision with a margin of 5 to 10 mm. Melanoma in situ does not require sentinel lymph node biopsy. However, a lymph node biopsy would have been necessary if the melanoma had been ≥ 1 mm in thickness or if it had been ≥ 0.8 mm in thickness with higher-risk features, such as an increased number of mitoses per high-power field on pathology. Mohs micrographic surgery (MMS) is emerging as an alternative method to wide local excision to treat melanoma in situ. However, it can only be done in specialized centers that can do rapid immunohistochemical staining on frozen sections. MMS is especially useful in cosmetically sensitive areas of the body and in areas where the true size of the melanoma in situ is unclear.

This patient subsequently underwent a wide local excision in the office with a margin of 6 mm. A sentinel lymph node biopsy was not performed. The patient will continue with skin surveillance consisting of full skin exams 3 to 4 times in the first year of diagnosis, then twice annually for Years 2 to 5. He will then come in for annual skin exams after that.

‌

Photos and text for Photo Rounds Friday courtesy of Jonathan Karnes, MD (copyright retained). Dr. Karnes is the medical director of MDFMR Dermatology Services, Augusta, ME.

A scoop shave biopsy was performed, including at least a 1-mm margin of normal-looking skin. Pathology was consistent with melanoma in situ.

Melanoma in situ, also called Stage 0 melanoma, is defined by atypical melanocytes that have not begun to invade the dermis and, therefore, have a Breslow thickness of 0 mm. While invasive melanoma is responsible for the largest number of skin cancer deaths in the United States (estimated to be 7990 in 2023), melanoma in situ maintains a very high cure rate when treated appropriately.¹

Dermoscopy can help differentiate melanoma from benign nevi or other benign skin lesions. In this case, dermoscopy revealed a fine pigment network at the periphery that indicated this lesion was made up of melanocytes. There were also atypical vascular markings (the milky red color) in the center. Taken together, these findings were strongly indicative of melanoma.

Standard of care for melanoma in situ is a wide local excision with a margin of 5 to 10 mm. Melanoma in situ does not require sentinel lymph node biopsy. However, a lymph node biopsy would have been necessary if the melanoma had been ≥ 1 mm in thickness or if it had been ≥ 0.8 mm in thickness with higher-risk features, such as an increased number of mitoses per high-power field on pathology. Mohs micrographic surgery (MMS) is emerging as an alternative method to wide local excision to treat melanoma in situ. However, it can only be done in specialized centers that can do rapid immunohistochemical staining on frozen sections. MMS is especially useful in cosmetically sensitive areas of the body and in areas where the true size of the melanoma in situ is unclear.

This patient subsequently underwent a wide local excision in the office with a margin of 6 mm. A sentinel lymph node biopsy was not performed. The patient will continue with skin surveillance consisting of full skin exams 3 to 4 times in the first year of diagnosis, then twice annually for Years 2 to 5. He will then come in for annual skin exams after that.

‌

Photos and text for Photo Rounds Friday courtesy of Jonathan Karnes, MD (copyright retained). Dr. Karnes is the medical director of MDFMR Dermatology Services, Augusta, ME.

Clustered erythematous macular to papular lesions, especially those that stop at clothing lines, are a frequent manifestation of insect bites. In this case, the lesions lacked a central punctum that is common in many insect bites, so the most likely culprit was bed bugs. It is likely that this patient’s friend inadvertently brought the bed bugs into the home in her luggage or packed belongings. Over time, they spread around the home, causing the patient’s bites and inflammation. When questioned, the patient noted that she could actually see bugs around the couch in her home.

The scientific name for bed bugs is Cimex lectularis. Bed bugs require a blood meal from a host to survive, but they do not remain attached to the human body. Instead, they live in nearby fabrics. Bed bugs are visible to the naked eye when they are in the open, although they usually remain along the seams of fabric, edges of bedding, or in cracks and crevices. Often the feces of bed bugs will collect and be seen as dark spots or streaks on bedding.¹

Treatment hinges on the eradication of the bed bugs. The erythematous itching lesions will resolve spontaneously over 1 to 2 weeks. Topical corticosteroids, including hydrocortisone, can be used as necessary to control the itching. Oral antihistamines can also help with itching.

Eradication of all the bed bugs in the home can be difficult and warrant professional extermination services. Washing clothing in hot water of at least 140 °F will kill the insects. Freezing items below –4 °F for at least 2 hours is also effective but may not be possible with home freezers.

It’s worth noting that resistance to insecticides has developed, making chemical eradication difficult. An alternative extermination protocol involves heating an entire home to the required temperatures to eradicate the infestation.¹

This patient noted that she had already thrown away the couch, clothes, and bedding where she had seen the insects and had sprayed her apartment with insecticide. She was counseled to contact a professional exterminator to further evaluate the home for any additional areas of infestation and treat if any bed bugs were still in the home. She was also counseled to use loratadine 10 mg/d orally and topical 1% hydrocortisone ointment, as needed, for the itching and inflammation.

‌

Photo and text courtesy of Daniel Stulberg, MD, FAAFP, Professor and Chair, Department of Family and Community Medicine, Western Michigan University Homer Stryker, MD School of Medicine, Kalamazoo.

Clustered erythematous macular to papular lesions, especially those that stop at clothing lines, are a frequent manifestation of insect bites. In this case, the lesions lacked a central punctum that is common in many insect bites, so the most likely culprit was bed bugs. It is likely that this patient’s friend inadvertently brought the bed bugs into the home in her luggage or packed belongings. Over time, they spread around the home, causing the patient’s bites and inflammation. When questioned, the patient noted that she could actually see bugs around the couch in her home.

The scientific name for bed bugs is Cimex lectularis. Bed bugs require a blood meal from a host to survive, but they do not remain attached to the human body. Instead, they live in nearby fabrics. Bed bugs are visible to the naked eye when they are in the open, although they usually remain along the seams of fabric, edges of bedding, or in cracks and crevices. Often the feces of bed bugs will collect and be seen as dark spots or streaks on bedding.¹

Treatment hinges on the eradication of the bed bugs. The erythematous itching lesions will resolve spontaneously over 1 to 2 weeks. Topical corticosteroids, including hydrocortisone, can be used as necessary to control the itching. Oral antihistamines can also help with itching.

Eradication of all the bed bugs in the home can be difficult and warrant professional extermination services. Washing clothing in hot water of at least 140 °F will kill the insects. Freezing items below –4 °F for at least 2 hours is also effective but may not be possible with home freezers.

It’s worth noting that resistance to insecticides has developed, making chemical eradication difficult. An alternative extermination protocol involves heating an entire home to the required temperatures to eradicate the infestation.¹

This patient noted that she had already thrown away the couch, clothes, and bedding where she had seen the insects and had sprayed her apartment with insecticide. She was counseled to contact a professional exterminator to further evaluate the home for any additional areas of infestation and treat if any bed bugs were still in the home. She was also counseled to use loratadine 10 mg/d orally and topical 1% hydrocortisone ointment, as needed, for the itching and inflammation.

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Photo and text courtesy of Daniel Stulberg, MD, FAAFP, Professor and Chair, Department of Family and Community Medicine, Western Michigan University Homer Stryker, MD School of Medicine, Kalamazoo.

Clustered erythematous macular to papular lesions, especially those that stop at clothing lines, are a frequent manifestation of insect bites. In this case, the lesions lacked a central punctum that is common in many insect bites, so the most likely culprit was bed bugs. It is likely that this patient’s friend inadvertently brought the bed bugs into the home in her luggage or packed belongings. Over time, they spread around the home, causing the patient’s bites and inflammation. When questioned, the patient noted that she could actually see bugs around the couch in her home.

The scientific name for bed bugs is Cimex lectularis. Bed bugs require a blood meal from a host to survive, but they do not remain attached to the human body. Instead, they live in nearby fabrics. Bed bugs are visible to the naked eye when they are in the open, although they usually remain along the seams of fabric, edges of bedding, or in cracks and crevices. Often the feces of bed bugs will collect and be seen as dark spots or streaks on bedding.¹

Treatment hinges on the eradication of the bed bugs. The erythematous itching lesions will resolve spontaneously over 1 to 2 weeks. Topical corticosteroids, including hydrocortisone, can be used as necessary to control the itching. Oral antihistamines can also help with itching.

Eradication of all the bed bugs in the home can be difficult and warrant professional extermination services. Washing clothing in hot water of at least 140 °F will kill the insects. Freezing items below –4 °F for at least 2 hours is also effective but may not be possible with home freezers.

It’s worth noting that resistance to insecticides has developed, making chemical eradication difficult. An alternative extermination protocol involves heating an entire home to the required temperatures to eradicate the infestation.¹

This patient noted that she had already thrown away the couch, clothes, and bedding where she had seen the insects and had sprayed her apartment with insecticide. She was counseled to contact a professional exterminator to further evaluate the home for any additional areas of infestation and treat if any bed bugs were still in the home. She was also counseled to use loratadine 10 mg/d orally and topical 1% hydrocortisone ointment, as needed, for the itching and inflammation.

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Photo and text courtesy of Daniel Stulberg, MD, FAAFP, Professor and Chair, Department of Family and Community Medicine, Western Michigan University Homer Stryker, MD School of Medicine, Kalamazoo.

This linear pattern of hyper-pigmented, often verrucous tissue oriented along Blaschko skin lines is typical for linear epidermal nevi (LEN). In some cases, lesions are not in a linear pattern and are actually in more of a localized or whorled pattern (called epidermal nevi).

LEN are usually present at birth, as in this individual. They are frequently seen on the head and neck region and are often asymptomatic. LEN are considered a birthmark that develops because of a genetic abnormality that typically affects keratinocytes. This genetic mutation only affects a portion of the body (mosaicism) without affecting the overall genetics of the individual. This is important to note because LEN do not typically have a hereditary component or implications for offspring. While usually asymptomatic and localized, LEN can be associated with extracutaneous and neurologic difficulties. In these situations, it is called epidermal nevus syndrome, and is more common if the LEN occur on the face or head.¹

Since LEN are usually asymptomatic, treatment is not required unless the lesions affect the function of adjacent structures, such as the eyes, lips, or nose. Due to their frequent presence on the face or other visible areas, some patients may choose to get these lesions treated for cosmetic purposes. In the past, full-thickness excision was recommended. Topical medications are ineffective, and superficial shave excision usually leads to recurrence. More recently, destructive laser treatments have been used, with success, to reduce the appearance of the lesions.²

This patient was not concerned about the appearance of the asymptomatic lesions and chose not to have any treatment.

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Photo and text courtesy of Daniel Stulberg, MD, FAAFP, Professor and Chair, Department of Family and Community Medicine, Western Michigan University Homer Stryker, MD School of Medicine, Kalamazoo.

This linear pattern of hyper-pigmented, often verrucous tissue oriented along Blaschko skin lines is typical for linear epidermal nevi (LEN). In some cases, lesions are not in a linear pattern and are actually in more of a localized or whorled pattern (called epidermal nevi).

LEN are usually present at birth, as in this individual. They are frequently seen on the head and neck region and are often asymptomatic. LEN are considered a birthmark that develops because of a genetic abnormality that typically affects keratinocytes. This genetic mutation only affects a portion of the body (mosaicism) without affecting the overall genetics of the individual. This is important to note because LEN do not typically have a hereditary component or implications for offspring. While usually asymptomatic and localized, LEN can be associated with extracutaneous and neurologic difficulties. In these situations, it is called epidermal nevus syndrome, and is more common if the LEN occur on the face or head.¹

Since LEN are usually asymptomatic, treatment is not required unless the lesions affect the function of adjacent structures, such as the eyes, lips, or nose. Due to their frequent presence on the face or other visible areas, some patients may choose to get these lesions treated for cosmetic purposes. In the past, full-thickness excision was recommended. Topical medications are ineffective, and superficial shave excision usually leads to recurrence. More recently, destructive laser treatments have been used, with success, to reduce the appearance of the lesions.²

This patient was not concerned about the appearance of the asymptomatic lesions and chose not to have any treatment.

‌

Photo and text courtesy of Daniel Stulberg, MD, FAAFP, Professor and Chair, Department of Family and Community Medicine, Western Michigan University Homer Stryker, MD School of Medicine, Kalamazoo.

This linear pattern of hyper-pigmented, often verrucous tissue oriented along Blaschko skin lines is typical for linear epidermal nevi (LEN). In some cases, lesions are not in a linear pattern and are actually in more of a localized or whorled pattern (called epidermal nevi).

LEN are usually present at birth, as in this individual. They are frequently seen on the head and neck region and are often asymptomatic. LEN are considered a birthmark that develops because of a genetic abnormality that typically affects keratinocytes. This genetic mutation only affects a portion of the body (mosaicism) without affecting the overall genetics of the individual. This is important to note because LEN do not typically have a hereditary component or implications for offspring. While usually asymptomatic and localized, LEN can be associated with extracutaneous and neurologic difficulties. In these situations, it is called epidermal nevus syndrome, and is more common if the LEN occur on the face or head.¹

Since LEN are usually asymptomatic, treatment is not required unless the lesions affect the function of adjacent structures, such as the eyes, lips, or nose. Due to their frequent presence on the face or other visible areas, some patients may choose to get these lesions treated for cosmetic purposes. In the past, full-thickness excision was recommended. Topical medications are ineffective, and superficial shave excision usually leads to recurrence. More recently, destructive laser treatments have been used, with success, to reduce the appearance of the lesions.²

This patient was not concerned about the appearance of the asymptomatic lesions and chose not to have any treatment.

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Photo and text courtesy of Daniel Stulberg, MD, FAAFP, Professor and Chair, Department of Family and Community Medicine, Western Michigan University Homer Stryker, MD School of Medicine, Kalamazoo.