[Tomography of the petrous portion of the temporal bone].
D002781:Cholesteatoma / Q000000981:diagnostic imaging; D004423:Ear / Q000002:abnormalities; D004428:Ear Neoplasms / Q000000981:diagnostic imaging; D006801:Humans; D010579:Petrous Bone / Q000000981:diagnostic imaging*; D014056:Tomography, X-Ray