Allergic contact dermatitis from hydroxypropyl cellulose in a transdermal estradiol patch.
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Biomedical subjects
Publications and source records attributed to B K Schwartz.
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Pemphigus is an autoimmune bullous dermatosis in which intercellular antibodies are associated with loss of intercellular cohesion. Pemphigus vegetans, a rare variant of pemphigus, is manifested by vegetating plaques, usually in intertriginous areas of patients who probably have an increased resistance to the disease. We report a case of chronic balanitis owing to pemphigus vegetans, and discuss proposed pathogenic mechanisms and treatment.
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Halo cutaneous melanoma developed in a 30-year-old woman. Following wide excision of the melanoma, she remained clinically free of tumor for 5 years. In a subsequent pregnancy, she developed metastases to the liver which became evident in the immediate postpartum period. Long-term survival associated with cutaneous hypopigmentation has been reported and occurred in our patient. The interaction between hormonal and immunologic factors and melanoma is explored.
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A 68-year-old woman with Hemophilus influenzae pneumonia experienced a bullous dermatosis. Further evaluation revealed bullous erythema multiforme of the minor type which resolved concurrently with treatment of the pneumonia. Clinicians should be aware that H. influenzae may be one of the bacterial agents known to cause erythema multiforme.
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Mycetoma is a chronic subcutaneous fungal infection characterized by tumefaction, draining sinuses, and grains. It is most common in the tropics but occasionally occurs in the United States. We report a case of a mycetoma affecting the foot of a 38-year-old mentally retarded man from northern New England. The causal organism was identified as Pseudallescheria boydii, the most common cause of mycetoma in the United States. The patient showed a partial response to 8 months of ketoconazole therapy.