[A strange tumor].
D002280:Basal Cell Carcinoma / Q000175:diagnosis*; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis*; D003937:Diagnosis, Differential; D006801:Humans; D007636:Keratoacanthoma / Q000175:diagnosis* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D012878:Skin Neoplasms / Q000175:diagnosis*
Une curieuse tumeur.