title: Clear cell acanthoma developing in epidermal nevus.
mesh_terms: D000368:Aged; D018288:Carcinoma, Small Cell / Q000473:pathology; D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology; D008297:Male; D009508:Nevus, Pigmented / Q000473:pathology*; D012878:Skin Neoplasms / Q000473:pathology*