Dermatitic epidermal nevus.
D000293:Adolescent; D000328:Adult; D002648:Child; D002908:Chronic Disease; D003872:Dermatitis / Q000175:diagnosis / Q000188:drug therapy / Q000473:pathology*; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D009508:Nevus, Pigmented / Q000175:diagnosis / Q000188:drug therapy / Q000473:pathology*; D012878:Skin Neoplasms / Q000175:diagnosis / Q000188:drug therapy / Q000473:pathology*