User login
December 2018
. White individuals over aged 50 years are more frequently affected. Both genders are equally affected, and 25% of cases occur on the covered areas (trunk or extremities) of younger patients. Clinically, lesions present as pink to red plaques or nodules that exhibit rapid growth. Ulceration or crusting may be present. Causes of AFX include ultraviolet radiation and ionizing radiation. AFX is considered a superficial variant of malignant fibrous histiocytoma (MFH), the most common soft tissue sarcoma of adults. Clinically, MFH involves deeper tissues than does AFX, often on the thighs or buttocks. MFH is a more aggressive malignancy that regularly metastasizes.
Histologically, the tumor occurs as a dermal proliferation of “bizarre” spindle cells, epithelioid cells, and atypical histiocytes. Vesicular changes may be present in the nucleus or cytoplasm of the spindle cells. Mitotic figures are present. Multinucleated giant cells may be present. Solar elastosis is often seen, as well. Vimentin and histiocyte stains are positive. Unlike melanoma, S-100 staining is minimal. Unlike squamous cell carcinoma, prekeratin staining is negative. CD34 is negative. AFX resembles MFH histologically.
Surgical excision by the Mohs procedure is preferred over wide excision as there is a risk of recurrence. AFX rarely metastasizes. This is more likely if inadequately excised or the patient is immunosuppressed. Sun protective practices, such as applying and reapplying sunscreen regularly, wearing sun protective clothing, and avoiding excessive UV exposure during peak hours is recommended.
This case and photo were submitted by Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@mdedge.com.
. White individuals over aged 50 years are more frequently affected. Both genders are equally affected, and 25% of cases occur on the covered areas (trunk or extremities) of younger patients. Clinically, lesions present as pink to red plaques or nodules that exhibit rapid growth. Ulceration or crusting may be present. Causes of AFX include ultraviolet radiation and ionizing radiation. AFX is considered a superficial variant of malignant fibrous histiocytoma (MFH), the most common soft tissue sarcoma of adults. Clinically, MFH involves deeper tissues than does AFX, often on the thighs or buttocks. MFH is a more aggressive malignancy that regularly metastasizes.
Histologically, the tumor occurs as a dermal proliferation of “bizarre” spindle cells, epithelioid cells, and atypical histiocytes. Vesicular changes may be present in the nucleus or cytoplasm of the spindle cells. Mitotic figures are present. Multinucleated giant cells may be present. Solar elastosis is often seen, as well. Vimentin and histiocyte stains are positive. Unlike melanoma, S-100 staining is minimal. Unlike squamous cell carcinoma, prekeratin staining is negative. CD34 is negative. AFX resembles MFH histologically.
Surgical excision by the Mohs procedure is preferred over wide excision as there is a risk of recurrence. AFX rarely metastasizes. This is more likely if inadequately excised or the patient is immunosuppressed. Sun protective practices, such as applying and reapplying sunscreen regularly, wearing sun protective clothing, and avoiding excessive UV exposure during peak hours is recommended.
This case and photo were submitted by Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@mdedge.com.
. White individuals over aged 50 years are more frequently affected. Both genders are equally affected, and 25% of cases occur on the covered areas (trunk or extremities) of younger patients. Clinically, lesions present as pink to red plaques or nodules that exhibit rapid growth. Ulceration or crusting may be present. Causes of AFX include ultraviolet radiation and ionizing radiation. AFX is considered a superficial variant of malignant fibrous histiocytoma (MFH), the most common soft tissue sarcoma of adults. Clinically, MFH involves deeper tissues than does AFX, often on the thighs or buttocks. MFH is a more aggressive malignancy that regularly metastasizes.
Histologically, the tumor occurs as a dermal proliferation of “bizarre” spindle cells, epithelioid cells, and atypical histiocytes. Vesicular changes may be present in the nucleus or cytoplasm of the spindle cells. Mitotic figures are present. Multinucleated giant cells may be present. Solar elastosis is often seen, as well. Vimentin and histiocyte stains are positive. Unlike melanoma, S-100 staining is minimal. Unlike squamous cell carcinoma, prekeratin staining is negative. CD34 is negative. AFX resembles MFH histologically.
Surgical excision by the Mohs procedure is preferred over wide excision as there is a risk of recurrence. AFX rarely metastasizes. This is more likely if inadequately excised or the patient is immunosuppressed. Sun protective practices, such as applying and reapplying sunscreen regularly, wearing sun protective clothing, and avoiding excessive UV exposure during peak hours is recommended.
This case and photo were submitted by Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@mdedge.com.
November 2018
Desmoplastic trichilemmoma
that presents as a solitary, skin colored lesion on the midface. Lesions may appear smooth or verrucous. Lesions may occur alongside trichoepitheliomas. They may also occur on genital skin and resemble condyloma acuminata.
Histopathology reveals downward lobular growth of the epidermis. Keratinocytes are clear secondary to periodic acid-Schiff (PAS)–positive glycogen in the cells. In desmoplastic trichilemmoma, small clusters of cells are arranged in an infiltrative pattern that resembles invasive carcinoma. Often, the desmoplastic areas are surrounded by benign-appearing trichilemmomas, which helps to make the diagnosis. Desmoplastic trichilemmomas can also occur within nevus sebaceous. As trichilemmoma is a benign growth; no treatment is needed. However, if further removal is desired, electrodesiccation, cryotherapy, shave removal, or excision are treatment options. Rarely seen, the malignant counterpart to trichilemmomas is a trichilemmal carcinoma, which requires surgical excision or Mohs.
The appearance of multiple trichilemmomas is a marker for Cowden syndrome. Cowden syndrome is a rare autosomal dominant disorder in which there is a mutation in a tumor-suppressor gene called PTEN. Patients may have oral mucosal papillomas, sclerotic fibromas, acral keratotic papules, and are at risk for the development of adenocarcinoma of the breast, gastrointestinal tract, and thyroid.
Trichoepithelioma is a benign neoplasm derived from follicular germ cells that presents as a skin-colored papule on the midface, especially the nose. Multiple trichoepitheliomas are a marker for Brooke-Spiegler syndrome. A desmoplastic trichoepithelioma is a variant that has stromal sclerosis on pathology. It is a benign lesion, although may be difficult to differentiate from sclerosing basal cell or microcystic adnexal carcinoma.
Angiofibroma, or fibrous papule, is a commonly seen, benign, skin-colored papule also often occurring on the nose. They can be treated for cosmetic purposes. Multiple lesions are associated with tuberous sclerosis.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@mdedge.com.
Desmoplastic trichilemmoma
that presents as a solitary, skin colored lesion on the midface. Lesions may appear smooth or verrucous. Lesions may occur alongside trichoepitheliomas. They may also occur on genital skin and resemble condyloma acuminata.
Histopathology reveals downward lobular growth of the epidermis. Keratinocytes are clear secondary to periodic acid-Schiff (PAS)–positive glycogen in the cells. In desmoplastic trichilemmoma, small clusters of cells are arranged in an infiltrative pattern that resembles invasive carcinoma. Often, the desmoplastic areas are surrounded by benign-appearing trichilemmomas, which helps to make the diagnosis. Desmoplastic trichilemmomas can also occur within nevus sebaceous. As trichilemmoma is a benign growth; no treatment is needed. However, if further removal is desired, electrodesiccation, cryotherapy, shave removal, or excision are treatment options. Rarely seen, the malignant counterpart to trichilemmomas is a trichilemmal carcinoma, which requires surgical excision or Mohs.
The appearance of multiple trichilemmomas is a marker for Cowden syndrome. Cowden syndrome is a rare autosomal dominant disorder in which there is a mutation in a tumor-suppressor gene called PTEN. Patients may have oral mucosal papillomas, sclerotic fibromas, acral keratotic papules, and are at risk for the development of adenocarcinoma of the breast, gastrointestinal tract, and thyroid.
Trichoepithelioma is a benign neoplasm derived from follicular germ cells that presents as a skin-colored papule on the midface, especially the nose. Multiple trichoepitheliomas are a marker for Brooke-Spiegler syndrome. A desmoplastic trichoepithelioma is a variant that has stromal sclerosis on pathology. It is a benign lesion, although may be difficult to differentiate from sclerosing basal cell or microcystic adnexal carcinoma.
Angiofibroma, or fibrous papule, is a commonly seen, benign, skin-colored papule also often occurring on the nose. They can be treated for cosmetic purposes. Multiple lesions are associated with tuberous sclerosis.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@mdedge.com.
Desmoplastic trichilemmoma
that presents as a solitary, skin colored lesion on the midface. Lesions may appear smooth or verrucous. Lesions may occur alongside trichoepitheliomas. They may also occur on genital skin and resemble condyloma acuminata.
Histopathology reveals downward lobular growth of the epidermis. Keratinocytes are clear secondary to periodic acid-Schiff (PAS)–positive glycogen in the cells. In desmoplastic trichilemmoma, small clusters of cells are arranged in an infiltrative pattern that resembles invasive carcinoma. Often, the desmoplastic areas are surrounded by benign-appearing trichilemmomas, which helps to make the diagnosis. Desmoplastic trichilemmomas can also occur within nevus sebaceous. As trichilemmoma is a benign growth; no treatment is needed. However, if further removal is desired, electrodesiccation, cryotherapy, shave removal, or excision are treatment options. Rarely seen, the malignant counterpart to trichilemmomas is a trichilemmal carcinoma, which requires surgical excision or Mohs.
The appearance of multiple trichilemmomas is a marker for Cowden syndrome. Cowden syndrome is a rare autosomal dominant disorder in which there is a mutation in a tumor-suppressor gene called PTEN. Patients may have oral mucosal papillomas, sclerotic fibromas, acral keratotic papules, and are at risk for the development of adenocarcinoma of the breast, gastrointestinal tract, and thyroid.
Trichoepithelioma is a benign neoplasm derived from follicular germ cells that presents as a skin-colored papule on the midface, especially the nose. Multiple trichoepitheliomas are a marker for Brooke-Spiegler syndrome. A desmoplastic trichoepithelioma is a variant that has stromal sclerosis on pathology. It is a benign lesion, although may be difficult to differentiate from sclerosing basal cell or microcystic adnexal carcinoma.
Angiofibroma, or fibrous papule, is a commonly seen, benign, skin-colored papule also often occurring on the nose. They can be treated for cosmetic purposes. Multiple lesions are associated with tuberous sclerosis.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@mdedge.com.
October 2018
Allergic contact dermatitis (ACD) can affect individuals regardless of age, race, or sex, but ACD accounts for 20% of all contact dermatitis reactions. ACD results in an inflammatory reaction in those who have been previously sensitized to an allergen. This type of delayed hypersensitivity reaction is known as cell-mediated hypersensitivity. Generally, no reaction is elicited upon the first exposure to the allergen. In fact, it may take years of exposure to allergens for someone to develop an allergic contact dermatitis.
Once sensitized, epidermal antigen-presenting cells (APCs) called Langerhans cells process the allergen and present it in a complex on the surface of the cell to a CD4+ T cell. Subsequently, inflammatory cytokines and mediators are released, resulting in an allergic cutaneous (eczematous) reaction. Lesions may appear to be vesicular or bullous. Occasionally, a generalized eruption may occur. With repeated exposure, reactions may be acute or chronic.
Common causes of allergic contact dermatitis include toxicodendron plants (poison ivy, oak, and sumac; cashew nut tree; and mango), metals (nickel and gold), topical antibiotics (neomycin and bacitracin), fragrance and Balsam of Peru, deodorant, preservatives (formaldehyde), and rubber (elastic and gloves).
Patch testing is the standard means of detecting which allergen is causing the sensitization in an individual. The Thin-Layer Rapid Use Epicutaneous (TRUE) test or individually prepared aluminum (Finn) chambers containing the most common allergens are applied to the patient’s upper back. The patches are removed after 48 hours and read, and then reevaluated at day 4 or 5. Positive reactions appear as eczematous or vesicular papules or plaques.
Treatment includes avoidance of the allergens. Topical corticosteroid creams are helpful. For severe or generalized reactions, oral prednisone may be used. It is important to note that patient may be allergic to topical steroids. Patch testing can be performed to elucidate such allergens.
In contrast, 80% of contact dermatitis reactions are irritant, not allergic. Irritant contact dermatitis results is a local inflammatory reaction in people who have come into contact with a substance. Previous sensitization is not required. The reaction usually occurs immediately after exposure. Common causes include alkalis (detergents, soaps), acids (often found as an industrial work exposure), metals, solvents (occupational dermatitis), hydrocarbons, and chlorinated compounds.
This case and photo were submitted by Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@mdedge.com.
Allergic contact dermatitis (ACD) can affect individuals regardless of age, race, or sex, but ACD accounts for 20% of all contact dermatitis reactions. ACD results in an inflammatory reaction in those who have been previously sensitized to an allergen. This type of delayed hypersensitivity reaction is known as cell-mediated hypersensitivity. Generally, no reaction is elicited upon the first exposure to the allergen. In fact, it may take years of exposure to allergens for someone to develop an allergic contact dermatitis.
Once sensitized, epidermal antigen-presenting cells (APCs) called Langerhans cells process the allergen and present it in a complex on the surface of the cell to a CD4+ T cell. Subsequently, inflammatory cytokines and mediators are released, resulting in an allergic cutaneous (eczematous) reaction. Lesions may appear to be vesicular or bullous. Occasionally, a generalized eruption may occur. With repeated exposure, reactions may be acute or chronic.
Common causes of allergic contact dermatitis include toxicodendron plants (poison ivy, oak, and sumac; cashew nut tree; and mango), metals (nickel and gold), topical antibiotics (neomycin and bacitracin), fragrance and Balsam of Peru, deodorant, preservatives (formaldehyde), and rubber (elastic and gloves).
Patch testing is the standard means of detecting which allergen is causing the sensitization in an individual. The Thin-Layer Rapid Use Epicutaneous (TRUE) test or individually prepared aluminum (Finn) chambers containing the most common allergens are applied to the patient’s upper back. The patches are removed after 48 hours and read, and then reevaluated at day 4 or 5. Positive reactions appear as eczematous or vesicular papules or plaques.
Treatment includes avoidance of the allergens. Topical corticosteroid creams are helpful. For severe or generalized reactions, oral prednisone may be used. It is important to note that patient may be allergic to topical steroids. Patch testing can be performed to elucidate such allergens.
In contrast, 80% of contact dermatitis reactions are irritant, not allergic. Irritant contact dermatitis results is a local inflammatory reaction in people who have come into contact with a substance. Previous sensitization is not required. The reaction usually occurs immediately after exposure. Common causes include alkalis (detergents, soaps), acids (often found as an industrial work exposure), metals, solvents (occupational dermatitis), hydrocarbons, and chlorinated compounds.
This case and photo were submitted by Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@mdedge.com.
Allergic contact dermatitis (ACD) can affect individuals regardless of age, race, or sex, but ACD accounts for 20% of all contact dermatitis reactions. ACD results in an inflammatory reaction in those who have been previously sensitized to an allergen. This type of delayed hypersensitivity reaction is known as cell-mediated hypersensitivity. Generally, no reaction is elicited upon the first exposure to the allergen. In fact, it may take years of exposure to allergens for someone to develop an allergic contact dermatitis.
Once sensitized, epidermal antigen-presenting cells (APCs) called Langerhans cells process the allergen and present it in a complex on the surface of the cell to a CD4+ T cell. Subsequently, inflammatory cytokines and mediators are released, resulting in an allergic cutaneous (eczematous) reaction. Lesions may appear to be vesicular or bullous. Occasionally, a generalized eruption may occur. With repeated exposure, reactions may be acute or chronic.
Common causes of allergic contact dermatitis include toxicodendron plants (poison ivy, oak, and sumac; cashew nut tree; and mango), metals (nickel and gold), topical antibiotics (neomycin and bacitracin), fragrance and Balsam of Peru, deodorant, preservatives (formaldehyde), and rubber (elastic and gloves).
Patch testing is the standard means of detecting which allergen is causing the sensitization in an individual. The Thin-Layer Rapid Use Epicutaneous (TRUE) test or individually prepared aluminum (Finn) chambers containing the most common allergens are applied to the patient’s upper back. The patches are removed after 48 hours and read, and then reevaluated at day 4 or 5. Positive reactions appear as eczematous or vesicular papules or plaques.
Treatment includes avoidance of the allergens. Topical corticosteroid creams are helpful. For severe or generalized reactions, oral prednisone may be used. It is important to note that patient may be allergic to topical steroids. Patch testing can be performed to elucidate such allergens.
In contrast, 80% of contact dermatitis reactions are irritant, not allergic. Irritant contact dermatitis results is a local inflammatory reaction in people who have come into contact with a substance. Previous sensitization is not required. The reaction usually occurs immediately after exposure. Common causes include alkalis (detergents, soaps), acids (often found as an industrial work exposure), metals, solvents (occupational dermatitis), hydrocarbons, and chlorinated compounds.
This case and photo were submitted by Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@mdedge.com.
A 30-year-old female presented with 2 days of intensely pruritic erythematous papules and vesicles on her bilateral arms and hands. The lesions began appearing 1 day after a camping trip. Her neck, chest, and upper back were clear.
Make The Diagnosis - September 2018
Some have postulated an infectious agent as the cause. Atopic dermatitis may confer an increased risk because of the chronic stimulation of T cells. Males are more commonly affected than females by a 2:1 ratio. A worse prognosis is associated with advanced age. Children and adolescents may be affected as well.
With mycosis fungoides, there are three main types of skin lesions: patch, plaque, and tumor. Patients will progress from patch to plaque to tumor stage in classic MF. Often, lesions begin as scaly, erythematous patches that resemble eczema. Because of the nonspecific nature of early lesions, the median duration from the onset of skin lesions to the diagnosis of MF is 4-6 years. Patch stage lesions may be pruritic or asymptomatic. Commonly, they present in non–sun-exposed areas, such as the buttocks. Annular, infiltrated, red-brown or violaceous plaques can develop, which represent malignant T-cell infiltration. Many patients never progress past the plaque stage. Tumor stage MF is more aggressive, with nodules that may undergo necrosis and ulceration.
The leukemic form of MF is Sézary syndrome. Patients present with pruritic erythroderma and lymphadenopathy. Nail dystrophy, scaling of palms and soles, and alopecia may be present. A peripheral blood smear reveals Sézary cells, which are large, hyperconvoluted lymphocytes. The count of Sézary cells is usually greater than 1000 cells/mm3.
Histology of early lesions may not be diagnostic for CTCL. Often, biopsies will be read as eczematous or psoriasiform for years before the diagnosis of MF is made. Classically, epidermotropism (single-cell exocytosis of lymphocytes into the epidermis) is present. Advanced stages may show a dense infiltrate of lymphocytes in the dermis. Groups of lymphocytes in the epidermis form Pautrier’s microabscesses. Mycosis cells may exhibit cerebriform nuclei. Neoplastic cells in MF are CD3+, CD4+, CD45RO+, CD8–. Tissue can be sent for T-cell gene rearrangement polymerase chain reaction. The presence of monoclonal T-cell gene receptor rearrangements can aid in the diagnosis of MF.
Treatment includes topical steroids, mechlorethamine (nitrogen mustard) or bexarotene gel, PUVA therapy, and narrow-band UVB light for limited and/or patch disease. Localized radiotherapy can be used for more resistant lesions. Topical therapies are preferred in the early stages in MF. Systemic treatments for patients who do not respond to local therapy, or in more advanced disease include methotrexate, interferon-alpha, oral bexarotene, denileukin diftitox, and combination chemotherapy. Photopheresis is reserved for erythrodermic disease.
This case and photo were submitted by Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@mdedge.com.
Some have postulated an infectious agent as the cause. Atopic dermatitis may confer an increased risk because of the chronic stimulation of T cells. Males are more commonly affected than females by a 2:1 ratio. A worse prognosis is associated with advanced age. Children and adolescents may be affected as well.
With mycosis fungoides, there are three main types of skin lesions: patch, plaque, and tumor. Patients will progress from patch to plaque to tumor stage in classic MF. Often, lesions begin as scaly, erythematous patches that resemble eczema. Because of the nonspecific nature of early lesions, the median duration from the onset of skin lesions to the diagnosis of MF is 4-6 years. Patch stage lesions may be pruritic or asymptomatic. Commonly, they present in non–sun-exposed areas, such as the buttocks. Annular, infiltrated, red-brown or violaceous plaques can develop, which represent malignant T-cell infiltration. Many patients never progress past the plaque stage. Tumor stage MF is more aggressive, with nodules that may undergo necrosis and ulceration.
The leukemic form of MF is Sézary syndrome. Patients present with pruritic erythroderma and lymphadenopathy. Nail dystrophy, scaling of palms and soles, and alopecia may be present. A peripheral blood smear reveals Sézary cells, which are large, hyperconvoluted lymphocytes. The count of Sézary cells is usually greater than 1000 cells/mm3.
Histology of early lesions may not be diagnostic for CTCL. Often, biopsies will be read as eczematous or psoriasiform for years before the diagnosis of MF is made. Classically, epidermotropism (single-cell exocytosis of lymphocytes into the epidermis) is present. Advanced stages may show a dense infiltrate of lymphocytes in the dermis. Groups of lymphocytes in the epidermis form Pautrier’s microabscesses. Mycosis cells may exhibit cerebriform nuclei. Neoplastic cells in MF are CD3+, CD4+, CD45RO+, CD8–. Tissue can be sent for T-cell gene rearrangement polymerase chain reaction. The presence of monoclonal T-cell gene receptor rearrangements can aid in the diagnosis of MF.
Treatment includes topical steroids, mechlorethamine (nitrogen mustard) or bexarotene gel, PUVA therapy, and narrow-band UVB light for limited and/or patch disease. Localized radiotherapy can be used for more resistant lesions. Topical therapies are preferred in the early stages in MF. Systemic treatments for patients who do not respond to local therapy, or in more advanced disease include methotrexate, interferon-alpha, oral bexarotene, denileukin diftitox, and combination chemotherapy. Photopheresis is reserved for erythrodermic disease.
This case and photo were submitted by Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@mdedge.com.
Some have postulated an infectious agent as the cause. Atopic dermatitis may confer an increased risk because of the chronic stimulation of T cells. Males are more commonly affected than females by a 2:1 ratio. A worse prognosis is associated with advanced age. Children and adolescents may be affected as well.
With mycosis fungoides, there are three main types of skin lesions: patch, plaque, and tumor. Patients will progress from patch to plaque to tumor stage in classic MF. Often, lesions begin as scaly, erythematous patches that resemble eczema. Because of the nonspecific nature of early lesions, the median duration from the onset of skin lesions to the diagnosis of MF is 4-6 years. Patch stage lesions may be pruritic or asymptomatic. Commonly, they present in non–sun-exposed areas, such as the buttocks. Annular, infiltrated, red-brown or violaceous plaques can develop, which represent malignant T-cell infiltration. Many patients never progress past the plaque stage. Tumor stage MF is more aggressive, with nodules that may undergo necrosis and ulceration.
The leukemic form of MF is Sézary syndrome. Patients present with pruritic erythroderma and lymphadenopathy. Nail dystrophy, scaling of palms and soles, and alopecia may be present. A peripheral blood smear reveals Sézary cells, which are large, hyperconvoluted lymphocytes. The count of Sézary cells is usually greater than 1000 cells/mm3.
Histology of early lesions may not be diagnostic for CTCL. Often, biopsies will be read as eczematous or psoriasiform for years before the diagnosis of MF is made. Classically, epidermotropism (single-cell exocytosis of lymphocytes into the epidermis) is present. Advanced stages may show a dense infiltrate of lymphocytes in the dermis. Groups of lymphocytes in the epidermis form Pautrier’s microabscesses. Mycosis cells may exhibit cerebriform nuclei. Neoplastic cells in MF are CD3+, CD4+, CD45RO+, CD8–. Tissue can be sent for T-cell gene rearrangement polymerase chain reaction. The presence of monoclonal T-cell gene receptor rearrangements can aid in the diagnosis of MF.
Treatment includes topical steroids, mechlorethamine (nitrogen mustard) or bexarotene gel, PUVA therapy, and narrow-band UVB light for limited and/or patch disease. Localized radiotherapy can be used for more resistant lesions. Topical therapies are preferred in the early stages in MF. Systemic treatments for patients who do not respond to local therapy, or in more advanced disease include methotrexate, interferon-alpha, oral bexarotene, denileukin diftitox, and combination chemotherapy. Photopheresis is reserved for erythrodermic disease.
This case and photo were submitted by Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@mdedge.com.
Make The Diagnosis - August 2018
respectively, of pityriasis lichenoides, an uncommon clonal T-cell disorder. The cause is unknown, although associations with infections have been reported. Pityriasis lichenoides more commonly affects children or young adults, usually before age 30 years. The disease can occur in all races.
In PLEVA, erythematous to brown papules and macules, in various stages of evolution, appear suddenly and in crops. The trunk and flexural areas are most often affected, but lesions may become widespread and may be pruritic or painful. Lesions may crust, ulcerate, or become necrotic and can heal with scarring. In general, patients don’t have constitutional symptoms. Lesions tend to resolve spontaneously over 1-3 years.
Rarely, PLEVA may develop into a more severe form called febrile ulceronecrotic Mucha-Habermann disease, a dermatologic emergency. Patients (more commonly, young males) may present with high fever, malaise, and lymphadenopathy. Lesions become very painful, ulcerated, and necrotic, and extensive necrosis may be present. Changes in mental status, breathing difficulties, anemia, arthritis, abdominal pain, and sepsis may occur. Patients require hospitalization. There is a 25% mortality rate.
PLC is at the other end of this disease spectrum, representing the chronic, more mild stage of the disorder. Lesions present as indolent, asymptomatic, scaly macules and erythematous papules, favoring the trunk and proximal extremities. Lesions tend to be fewer in number than seen in PLEVA. They resolve over several months and may result in hypopigmentation, but usually don’t cause scarring. Patients may have long periods of remission between outbreaks. T-cell gene rearrangement may demonstrate monoclonality. PLC is generally considered a benign disease, although there are patients who have developed cutaneous T-cell lymphoma. For this reason, patients should be followed carefully for signs of malignant transformation.
Both forms share a common histologic picture. In PLEVA, focal parakeratosis and crusting is present. A dense, wedge-shaped infiltrate can be seen with prominent lymphocytic exocystosis in the epidermis. Necrotic keratinocytes are often seen. There may be spongiosis and intraepidermal vesicles. Extravasation of erythrocytes often occurs in the epidermis. PLC is histologically similar but far more subtle. There is less crusting, less spongiosis, fewer vesicles, and fewer necrotic keratinocytes. Generally, atypia of lymphocytes is absent.
Mucha-Habermann requires treatment with systemic steroids. Methotrexate, cyclosporine, or dapsone may be used as steroid-sparing agents. Upon treatment, lesions may resolve or revert back to more typical lesions of PLEVA. Treatment for PLEVA and PLC includes oral tetracycline or erythromycin, antihistamines (if pruritus is present), topical steroids, topical tacrolimus or pimecrolimus, or phototherapy. Low-dose weekly methotrexate may be helpful.
This case and photo were submitted by Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@mdedge.com.
respectively, of pityriasis lichenoides, an uncommon clonal T-cell disorder. The cause is unknown, although associations with infections have been reported. Pityriasis lichenoides more commonly affects children or young adults, usually before age 30 years. The disease can occur in all races.
In PLEVA, erythematous to brown papules and macules, in various stages of evolution, appear suddenly and in crops. The trunk and flexural areas are most often affected, but lesions may become widespread and may be pruritic or painful. Lesions may crust, ulcerate, or become necrotic and can heal with scarring. In general, patients don’t have constitutional symptoms. Lesions tend to resolve spontaneously over 1-3 years.
Rarely, PLEVA may develop into a more severe form called febrile ulceronecrotic Mucha-Habermann disease, a dermatologic emergency. Patients (more commonly, young males) may present with high fever, malaise, and lymphadenopathy. Lesions become very painful, ulcerated, and necrotic, and extensive necrosis may be present. Changes in mental status, breathing difficulties, anemia, arthritis, abdominal pain, and sepsis may occur. Patients require hospitalization. There is a 25% mortality rate.
PLC is at the other end of this disease spectrum, representing the chronic, more mild stage of the disorder. Lesions present as indolent, asymptomatic, scaly macules and erythematous papules, favoring the trunk and proximal extremities. Lesions tend to be fewer in number than seen in PLEVA. They resolve over several months and may result in hypopigmentation, but usually don’t cause scarring. Patients may have long periods of remission between outbreaks. T-cell gene rearrangement may demonstrate monoclonality. PLC is generally considered a benign disease, although there are patients who have developed cutaneous T-cell lymphoma. For this reason, patients should be followed carefully for signs of malignant transformation.
Both forms share a common histologic picture. In PLEVA, focal parakeratosis and crusting is present. A dense, wedge-shaped infiltrate can be seen with prominent lymphocytic exocystosis in the epidermis. Necrotic keratinocytes are often seen. There may be spongiosis and intraepidermal vesicles. Extravasation of erythrocytes often occurs in the epidermis. PLC is histologically similar but far more subtle. There is less crusting, less spongiosis, fewer vesicles, and fewer necrotic keratinocytes. Generally, atypia of lymphocytes is absent.
Mucha-Habermann requires treatment with systemic steroids. Methotrexate, cyclosporine, or dapsone may be used as steroid-sparing agents. Upon treatment, lesions may resolve or revert back to more typical lesions of PLEVA. Treatment for PLEVA and PLC includes oral tetracycline or erythromycin, antihistamines (if pruritus is present), topical steroids, topical tacrolimus or pimecrolimus, or phototherapy. Low-dose weekly methotrexate may be helpful.
This case and photo were submitted by Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@mdedge.com.
respectively, of pityriasis lichenoides, an uncommon clonal T-cell disorder. The cause is unknown, although associations with infections have been reported. Pityriasis lichenoides more commonly affects children or young adults, usually before age 30 years. The disease can occur in all races.
In PLEVA, erythematous to brown papules and macules, in various stages of evolution, appear suddenly and in crops. The trunk and flexural areas are most often affected, but lesions may become widespread and may be pruritic or painful. Lesions may crust, ulcerate, or become necrotic and can heal with scarring. In general, patients don’t have constitutional symptoms. Lesions tend to resolve spontaneously over 1-3 years.
Rarely, PLEVA may develop into a more severe form called febrile ulceronecrotic Mucha-Habermann disease, a dermatologic emergency. Patients (more commonly, young males) may present with high fever, malaise, and lymphadenopathy. Lesions become very painful, ulcerated, and necrotic, and extensive necrosis may be present. Changes in mental status, breathing difficulties, anemia, arthritis, abdominal pain, and sepsis may occur. Patients require hospitalization. There is a 25% mortality rate.
PLC is at the other end of this disease spectrum, representing the chronic, more mild stage of the disorder. Lesions present as indolent, asymptomatic, scaly macules and erythematous papules, favoring the trunk and proximal extremities. Lesions tend to be fewer in number than seen in PLEVA. They resolve over several months and may result in hypopigmentation, but usually don’t cause scarring. Patients may have long periods of remission between outbreaks. T-cell gene rearrangement may demonstrate monoclonality. PLC is generally considered a benign disease, although there are patients who have developed cutaneous T-cell lymphoma. For this reason, patients should be followed carefully for signs of malignant transformation.
Both forms share a common histologic picture. In PLEVA, focal parakeratosis and crusting is present. A dense, wedge-shaped infiltrate can be seen with prominent lymphocytic exocystosis in the epidermis. Necrotic keratinocytes are often seen. There may be spongiosis and intraepidermal vesicles. Extravasation of erythrocytes often occurs in the epidermis. PLC is histologically similar but far more subtle. There is less crusting, less spongiosis, fewer vesicles, and fewer necrotic keratinocytes. Generally, atypia of lymphocytes is absent.
Mucha-Habermann requires treatment with systemic steroids. Methotrexate, cyclosporine, or dapsone may be used as steroid-sparing agents. Upon treatment, lesions may resolve or revert back to more typical lesions of PLEVA. Treatment for PLEVA and PLC includes oral tetracycline or erythromycin, antihistamines (if pruritus is present), topical steroids, topical tacrolimus or pimecrolimus, or phototherapy. Low-dose weekly methotrexate may be helpful.
This case and photo were submitted by Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@mdedge.com.
A 28-year-old white female with no significant past medical history presents with a 10-year history of asymptomatic erythematous papules and scaly patches that come and go. She has used topical steroids in the past.
Make the Diagnosis - June 2018
Different types of steatocystoma multiplex have been described: localized, generalized, facial, acral, and suppurative (in which the lesions resemble hidradenitis suppurativa).
This condition is autosomal dominant and is linked to defects in KRT17 gene, which instructs the production of keratin 17. However, some cases of steatocystoma multiplex occur sporadically with no mutation in the KRT17 gene; in them, the cause is unknown. Steatocystoma multiplex may be associated with eruptive vellus hair cysts and pachyonychia congenita (nail and teeth abnormalities and palmoplantar keratoderma). Lesions often appear during adolescence, when an individual hits puberty. Hormones likely influence the development of the cysts from the pilosebaceous unit. If there is a single steatocystoma, it is called steatocystoma simplex.
Steatocystomas do not resolve on their own. The small, benign cysts are located fairly superficial in the dermis. If punctured, they drain a yellow, oily liquid sebum. Lesions may become inflamed and may heal with scarring, as in acne. They may be treated by incision and drainage or excision to remove the cyst wall. Electrosurgery and cryotherapy may be used. Oral antibiotics may improve inflamed lesions. There are reports in the literature in which isotretinoin has helped; however, it is not curative. In some cases, the lesions can reoccur and may even be worse.
Case and photo submitted by: Donna Bilu Martin, MD; Premier Dermatology, MD; Aventura, Fla.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@mdedge.com.
Different types of steatocystoma multiplex have been described: localized, generalized, facial, acral, and suppurative (in which the lesions resemble hidradenitis suppurativa).
This condition is autosomal dominant and is linked to defects in KRT17 gene, which instructs the production of keratin 17. However, some cases of steatocystoma multiplex occur sporadically with no mutation in the KRT17 gene; in them, the cause is unknown. Steatocystoma multiplex may be associated with eruptive vellus hair cysts and pachyonychia congenita (nail and teeth abnormalities and palmoplantar keratoderma). Lesions often appear during adolescence, when an individual hits puberty. Hormones likely influence the development of the cysts from the pilosebaceous unit. If there is a single steatocystoma, it is called steatocystoma simplex.
Steatocystomas do not resolve on their own. The small, benign cysts are located fairly superficial in the dermis. If punctured, they drain a yellow, oily liquid sebum. Lesions may become inflamed and may heal with scarring, as in acne. They may be treated by incision and drainage or excision to remove the cyst wall. Electrosurgery and cryotherapy may be used. Oral antibiotics may improve inflamed lesions. There are reports in the literature in which isotretinoin has helped; however, it is not curative. In some cases, the lesions can reoccur and may even be worse.
Case and photo submitted by: Donna Bilu Martin, MD; Premier Dermatology, MD; Aventura, Fla.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@mdedge.com.
Different types of steatocystoma multiplex have been described: localized, generalized, facial, acral, and suppurative (in which the lesions resemble hidradenitis suppurativa).
This condition is autosomal dominant and is linked to defects in KRT17 gene, which instructs the production of keratin 17. However, some cases of steatocystoma multiplex occur sporadically with no mutation in the KRT17 gene; in them, the cause is unknown. Steatocystoma multiplex may be associated with eruptive vellus hair cysts and pachyonychia congenita (nail and teeth abnormalities and palmoplantar keratoderma). Lesions often appear during adolescence, when an individual hits puberty. Hormones likely influence the development of the cysts from the pilosebaceous unit. If there is a single steatocystoma, it is called steatocystoma simplex.
Steatocystomas do not resolve on their own. The small, benign cysts are located fairly superficial in the dermis. If punctured, they drain a yellow, oily liquid sebum. Lesions may become inflamed and may heal with scarring, as in acne. They may be treated by incision and drainage or excision to remove the cyst wall. Electrosurgery and cryotherapy may be used. Oral antibiotics may improve inflamed lesions. There are reports in the literature in which isotretinoin has helped; however, it is not curative. In some cases, the lesions can reoccur and may even be worse.
Case and photo submitted by: Donna Bilu Martin, MD; Premier Dermatology, MD; Aventura, Fla.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@mdedge.com.
Make the Diagnosis - May 2018
Generally, school-aged children are most often affected. Infections are more likely in late winter and early spring. The virus is spread via respiratory secretions, blood products, and transmission from mother to fetus. The cutaneous findings occur about 10 days after exposure to the virus. By that time, the risk of being contagious is low.
Healthy individuals have no sequelae from fifth disease and require no treatment. However, in patients with hemoglobinopathies, such as sickle cell disease, an aplastic crisis can be triggered. In patients with deficient immune systems, parvovirus B19 may cause infection and anemia, requiring hospitalization. Pregnant women exposed to parvovirus B19 are at risk for hydrops fetalis and rarely, fetal malformations or fetal demise. Other uncommon associations include hepatitis, vasculitides, and neurologic disease.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@mdedge.com. This case and photo were submitted by Dr. Bilu Martin.
Generally, school-aged children are most often affected. Infections are more likely in late winter and early spring. The virus is spread via respiratory secretions, blood products, and transmission from mother to fetus. The cutaneous findings occur about 10 days after exposure to the virus. By that time, the risk of being contagious is low.
Healthy individuals have no sequelae from fifth disease and require no treatment. However, in patients with hemoglobinopathies, such as sickle cell disease, an aplastic crisis can be triggered. In patients with deficient immune systems, parvovirus B19 may cause infection and anemia, requiring hospitalization. Pregnant women exposed to parvovirus B19 are at risk for hydrops fetalis and rarely, fetal malformations or fetal demise. Other uncommon associations include hepatitis, vasculitides, and neurologic disease.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@mdedge.com. This case and photo were submitted by Dr. Bilu Martin.
Generally, school-aged children are most often affected. Infections are more likely in late winter and early spring. The virus is spread via respiratory secretions, blood products, and transmission from mother to fetus. The cutaneous findings occur about 10 days after exposure to the virus. By that time, the risk of being contagious is low.
Healthy individuals have no sequelae from fifth disease and require no treatment. However, in patients with hemoglobinopathies, such as sickle cell disease, an aplastic crisis can be triggered. In patients with deficient immune systems, parvovirus B19 may cause infection and anemia, requiring hospitalization. Pregnant women exposed to parvovirus B19 are at risk for hydrops fetalis and rarely, fetal malformations or fetal demise. Other uncommon associations include hepatitis, vasculitides, and neurologic disease.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@mdedge.com. This case and photo were submitted by Dr. Bilu Martin.
Make The Diagnosis - April 2018
Once an individual has been exposed to varicella-zoster virus, either from primary infection (chickenpox) or vaccination, the virus remains dormant in dorsal root ganglion cells. It may become reactivated at a later time, which results in herpes zoster. Typically, immunosuppression (hematologic malignancy and HIV infection) and age are factors that play a role in reactivation, although young people may develop shingles as well. Older age increases the incidence of herpes zoster.
More than 90% of patients will experience a prodrome of pain, burning, or tingling in the dermatome prior to the development of cutaneous lesions. Occasionally, there will be no symptoms prior. Papules and plaques begin to form, which quickly develop into vesicles and blisters. After a few days, lesions become crusted. Bullae or necrosis may occur in more severe cases. Typically, the condition resolves in 2-3 weeks, but can take 6 weeks or longer in elderly patients. In zoster sine herpete, patients have pain but no skin lesions.
In typical herpes zoster, lesions can be scattered outside the dermatome as well. When more than 20 lesions are scattered outside the area of primary or adjacent dermatomes, this is defined as disseminated herpes zoster. This occurs more commonly in debilitated or immune-compromised individuals. The outlying vesicles are often singular, not grouped, and resemble the “dew drop on a rose petal” look of varicella-zoster lesions. Dissemination necessitates systemic antiviral therapy, preferably intravenous followed by oral treatment once stable. Central nervous system and pulmonary involvement can occur.
Complications of zoster can occur. Postherpetic neuralgia and pain is more common in patients over the age of 50 and may become chronic. Ramsay Hunt syndrome may result in facial paralysis and hearing loss when there is involvement of the facial or auditory nerve. Occasionally, inflammatory lesions can occur within the affected area after the infection has resolved. Secondary bacterial infection, scarring, and motor paralysis can occur.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@frontlinemedcom.com. This case and photo were submitted by Dr. Bilu Martin.
Once an individual has been exposed to varicella-zoster virus, either from primary infection (chickenpox) or vaccination, the virus remains dormant in dorsal root ganglion cells. It may become reactivated at a later time, which results in herpes zoster. Typically, immunosuppression (hematologic malignancy and HIV infection) and age are factors that play a role in reactivation, although young people may develop shingles as well. Older age increases the incidence of herpes zoster.
More than 90% of patients will experience a prodrome of pain, burning, or tingling in the dermatome prior to the development of cutaneous lesions. Occasionally, there will be no symptoms prior. Papules and plaques begin to form, which quickly develop into vesicles and blisters. After a few days, lesions become crusted. Bullae or necrosis may occur in more severe cases. Typically, the condition resolves in 2-3 weeks, but can take 6 weeks or longer in elderly patients. In zoster sine herpete, patients have pain but no skin lesions.
In typical herpes zoster, lesions can be scattered outside the dermatome as well. When more than 20 lesions are scattered outside the area of primary or adjacent dermatomes, this is defined as disseminated herpes zoster. This occurs more commonly in debilitated or immune-compromised individuals. The outlying vesicles are often singular, not grouped, and resemble the “dew drop on a rose petal” look of varicella-zoster lesions. Dissemination necessitates systemic antiviral therapy, preferably intravenous followed by oral treatment once stable. Central nervous system and pulmonary involvement can occur.
Complications of zoster can occur. Postherpetic neuralgia and pain is more common in patients over the age of 50 and may become chronic. Ramsay Hunt syndrome may result in facial paralysis and hearing loss when there is involvement of the facial or auditory nerve. Occasionally, inflammatory lesions can occur within the affected area after the infection has resolved. Secondary bacterial infection, scarring, and motor paralysis can occur.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@frontlinemedcom.com. This case and photo were submitted by Dr. Bilu Martin.
Once an individual has been exposed to varicella-zoster virus, either from primary infection (chickenpox) or vaccination, the virus remains dormant in dorsal root ganglion cells. It may become reactivated at a later time, which results in herpes zoster. Typically, immunosuppression (hematologic malignancy and HIV infection) and age are factors that play a role in reactivation, although young people may develop shingles as well. Older age increases the incidence of herpes zoster.
More than 90% of patients will experience a prodrome of pain, burning, or tingling in the dermatome prior to the development of cutaneous lesions. Occasionally, there will be no symptoms prior. Papules and plaques begin to form, which quickly develop into vesicles and blisters. After a few days, lesions become crusted. Bullae or necrosis may occur in more severe cases. Typically, the condition resolves in 2-3 weeks, but can take 6 weeks or longer in elderly patients. In zoster sine herpete, patients have pain but no skin lesions.
In typical herpes zoster, lesions can be scattered outside the dermatome as well. When more than 20 lesions are scattered outside the area of primary or adjacent dermatomes, this is defined as disseminated herpes zoster. This occurs more commonly in debilitated or immune-compromised individuals. The outlying vesicles are often singular, not grouped, and resemble the “dew drop on a rose petal” look of varicella-zoster lesions. Dissemination necessitates systemic antiviral therapy, preferably intravenous followed by oral treatment once stable. Central nervous system and pulmonary involvement can occur.
Complications of zoster can occur. Postherpetic neuralgia and pain is more common in patients over the age of 50 and may become chronic. Ramsay Hunt syndrome may result in facial paralysis and hearing loss when there is involvement of the facial or auditory nerve. Occasionally, inflammatory lesions can occur within the affected area after the infection has resolved. Secondary bacterial infection, scarring, and motor paralysis can occur.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@frontlinemedcom.com. This case and photo were submitted by Dr. Bilu Martin.
A healthy 70-year-old white male presented with an 8-day history of fatigue and a tingling, erythematous plaque with crusting on the left flank. Four days after the flank lesions appeared, he developed vesicles with an erythematous base on the right abdomen and back. There were more than 20 vesicles present on the abdomen and back, but there were no lesions on other parts of the body.
Make the Diagnosis - March 2018
Familial benign chronic pemphigus, also known as Hailey-Hailey disease, is an uncommon autosomal dominant genetic condition. A mutation in the calcium ATPase (ATP2C1) gene on chromosome 3q21 interferes with calcium signaling and results in a loss of keratinocyte adhesion. Generally, the onset of the condition is in the second or third decade. There are two clinical subtypes of the disease: segmental type 1 and segmental type 2.
Histology reveals groups of acantholytic cells that resemble a “dilapidated brick wall.” Direct immunofluorescence is negative, unlike pemphigus vulgaris.
As hyperhidrosis is a known aggravating factor, injection with botulinum toxin (this is off-label use not yet approved by the Food and Drug Administration) in affected areas to decrease sweating has been reported to be effective.
This case and photo were submitted by Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@frontlinemedcom.com.
Familial benign chronic pemphigus, also known as Hailey-Hailey disease, is an uncommon autosomal dominant genetic condition. A mutation in the calcium ATPase (ATP2C1) gene on chromosome 3q21 interferes with calcium signaling and results in a loss of keratinocyte adhesion. Generally, the onset of the condition is in the second or third decade. There are two clinical subtypes of the disease: segmental type 1 and segmental type 2.
Histology reveals groups of acantholytic cells that resemble a “dilapidated brick wall.” Direct immunofluorescence is negative, unlike pemphigus vulgaris.
As hyperhidrosis is a known aggravating factor, injection with botulinum toxin (this is off-label use not yet approved by the Food and Drug Administration) in affected areas to decrease sweating has been reported to be effective.
This case and photo were submitted by Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@frontlinemedcom.com.
Familial benign chronic pemphigus, also known as Hailey-Hailey disease, is an uncommon autosomal dominant genetic condition. A mutation in the calcium ATPase (ATP2C1) gene on chromosome 3q21 interferes with calcium signaling and results in a loss of keratinocyte adhesion. Generally, the onset of the condition is in the second or third decade. There are two clinical subtypes of the disease: segmental type 1 and segmental type 2.
Histology reveals groups of acantholytic cells that resemble a “dilapidated brick wall.” Direct immunofluorescence is negative, unlike pemphigus vulgaris.
As hyperhidrosis is a known aggravating factor, injection with botulinum toxin (this is off-label use not yet approved by the Food and Drug Administration) in affected areas to decrease sweating has been reported to be effective.
This case and photo were submitted by Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@frontlinemedcom.com.
A 39-year-old healthy black woman presented with itchy, painful lesions in the bilateral axillae and groin. The lesions have come and gone for 15 years and flare when the patient perspires. Her mother and grandmother have the same condition.
Make the diagnosis - January 2018
Cutaneous lupus erythematosus can be classified into acute, subacute, and chronic lesions. Chronic cutaneous lupus, or discoid lupus erythematosus (DLE), may occur independently of or in combination with systemic lupus erythematosus (SLE). They are one of the more common skin presentations seen in lupus. Young adults are typically affected, with a female-to-male ratio of 2:1. Progression from DLE to SLE is uncommon. However, patients with SLE will frequently develop discoid lesions.
The differential diagnosis includes: subacute cutaneous lupus, lichen planus, seborrheic dermatitis, Jessner’s lymphocytic infiltrate, polymorphous light eruption, rosacea, granuloma faciale, and sarcoidosis. Histology of DLE may reveal hyperkeratosis, a thin epidermis with effacement of the rete ridges, a lichenoid and vacuolar interface dermatitis, and follicular plugging. Damaged keratinocytes called colloid bodies may be present. Increased mucin and thickening of the basement membrane are commonly seen. Active lesions will exhibit more of an inflammatory infiltrate. Direct immunofluorescence of lesional skin is positive in more than 75% of cases.
This case and the photo were submitted by Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@frontlinemedcom.com.
Cutaneous lupus erythematosus can be classified into acute, subacute, and chronic lesions. Chronic cutaneous lupus, or discoid lupus erythematosus (DLE), may occur independently of or in combination with systemic lupus erythematosus (SLE). They are one of the more common skin presentations seen in lupus. Young adults are typically affected, with a female-to-male ratio of 2:1. Progression from DLE to SLE is uncommon. However, patients with SLE will frequently develop discoid lesions.
The differential diagnosis includes: subacute cutaneous lupus, lichen planus, seborrheic dermatitis, Jessner’s lymphocytic infiltrate, polymorphous light eruption, rosacea, granuloma faciale, and sarcoidosis. Histology of DLE may reveal hyperkeratosis, a thin epidermis with effacement of the rete ridges, a lichenoid and vacuolar interface dermatitis, and follicular plugging. Damaged keratinocytes called colloid bodies may be present. Increased mucin and thickening of the basement membrane are commonly seen. Active lesions will exhibit more of an inflammatory infiltrate. Direct immunofluorescence of lesional skin is positive in more than 75% of cases.
This case and the photo were submitted by Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@frontlinemedcom.com.
Cutaneous lupus erythematosus can be classified into acute, subacute, and chronic lesions. Chronic cutaneous lupus, or discoid lupus erythematosus (DLE), may occur independently of or in combination with systemic lupus erythematosus (SLE). They are one of the more common skin presentations seen in lupus. Young adults are typically affected, with a female-to-male ratio of 2:1. Progression from DLE to SLE is uncommon. However, patients with SLE will frequently develop discoid lesions.
The differential diagnosis includes: subacute cutaneous lupus, lichen planus, seborrheic dermatitis, Jessner’s lymphocytic infiltrate, polymorphous light eruption, rosacea, granuloma faciale, and sarcoidosis. Histology of DLE may reveal hyperkeratosis, a thin epidermis with effacement of the rete ridges, a lichenoid and vacuolar interface dermatitis, and follicular plugging. Damaged keratinocytes called colloid bodies may be present. Increased mucin and thickening of the basement membrane are commonly seen. Active lesions will exhibit more of an inflammatory infiltrate. Direct immunofluorescence of lesional skin is positive in more than 75% of cases.
This case and the photo were submitted by Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@frontlinemedcom.com.
A 32-year-old male with no significant past medical history presented with a 2-year history of asymptomatic perioral lesions. On physical examination, multiple erythematous to hypopigmented atrophic plaques with peripheral hyperpigmentation were present.