Petrous bone cholesteatoma.
D001299:Audiometry; D002781:Cholesteatoma / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000601:surgery*; D004585:Electrooculography; D006801:Humans; D008297:Male; D008875:Middle Aged; D010579:Petrous Bone / Q000000981:diagnostic imaging / Q000601:surgery*; D011859:Radiography