Cholesteatoma or keratoma, "a pathological approach".
D002781:Cholesteatoma / Q000000981:diagnostic imaging / Q000473:pathology*; D004427:Ear Diseases / Q000000981:diagnostic imaging / Q000473:pathology*; D006801:Humans; D007642:Keratosis / Q000000981:diagnostic imaging / Q000473:pathology*; D011859:Radiography