title: Basal cell epithelioma in a pigmented nevus (report of a case with ulceration).
mesh_terms: D000328:Adult; D002280:Basal Cell Carcinoma / Q000473:pathology*; D006801:Humans; D008297:Male; D009508:Nevus, Pigmented / Q000473:pathology*; D012878:Skin Neoplasms / Q000473:pathology*