Keratoacanthoma of the face.
D000328:Adult; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis*; D003937:Diagnosis, Differential; D005153:Facial Neoplasms / Q000175:diagnosis*; D006801:Humans; D007636:Keratoacanthoma / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged