Sebaceous nevus and keratoacanthoma.
D002294:Carcinoma, Squamous Cell / Q000175:diagnosis; D002648:Child; D006801:Humans; D007636:Keratoacanthoma / Q000175:diagnosis*; D008297:Male; D009506:Nevus / Q000175:diagnosis*; D012535:Scalp; D012626:Sebaceous Gland Neoplasms / Q000175:diagnosis*; D012878:Skin Neoplasms / Q000150:complications*