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Background: Condylomata acuminata (genital warts) is the most common sexually transmitted disease, and imiquimod is the sole FDA-approved medication for combating this condition. Vitiligo associated with imiquimod treatment of condylomata acuminata is rare.Case Presentation: A 28-year-old male with condylomata acuminata of the penis presented to our clinic. After removing his condylomata acuminata, we advised him to use imiquimod 5% cream to prevent relapse. When he presented to our clinic again about 12 weeks later, he complained of vitiligo patches on his penis and scrotum. Physical examination showed vitiligo patches involving the glans penis, shaft of the penis, and scrotum, and remaining pigmented areas within the plaques of vitiligo.A skin biopsy of the dorsal surface of the penis showed a complete absence of melanocytes and melanin granules in the basal layer; the dermis was normal.Conclusion: This is the first report of a case of imiquimod-induced vitiligo diagnosed by histopathological examination. This adverse effect should be considered when dermatologists prescribe this medication. [ABSTRACT FROM AUTHOR]

We report a case of erythrodermic psoriasis with bullous pemphigoid (BP) in a 68-year-old male. The patient had a history of psoriasis for 35 years and tense, blisterlike lesions for 4 months. He presented with diffuse flushing, infiltrative swelling, and tense blisterlike lesions on his head, trunk, and limbs. This patient was successfully treated by a combination of methotrexate and compound glycyrrhizin. We also discuss the clinical manifestations, histopathological features, and differentiation of erythrodermic psoriasis with BP and present a review of the pertinent literature., Virtual Slides: The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/1853737109114076.

We report a case of recurrent cutaneous necrotizing eosinophilic vasculitis (RCNEV) in a 57-year-old male. The patient presented with papules and pruritus of the lower limbs of more than 1 month duration, and with angioedema and intensively pruritic, necrotizing lesions of the bilateral anterior tibias and feet for 2 weeks. Treatment with systemic corticosteroids was administered for 1 month, and resulted in a significant improvement. We also present a review of the pertinent literature and discuss the clinical features, histopathological features, and differentiation of RCNEV., Virtual Slides: The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/2065600765102207.