High resolution computed tomography (CT) of the middle ear and mastoid, when properly performed and interpreted, is valuable to the otologic surgeon prior to exploration of the cholesteatomatous ear. Fifty one patients with cholesteatomatous otitis media underwent CT examination of both ears one to four weeks prior to surgery. These CT findings were then compared with operation findings. We analysed sixteen parameters of the anatomical and pathological features of the temporal bone affected by cholesteatoma. In conclusion, a high degree of correct correlation was noted between CT findings and those of the operation. Our study showed the usefulness and accuracy of preoperative computed tomographic study in cholesteatomatous otitis media.
Adolescent ; Adult ; Child ; Cholesteatoma/*radiography/surgery ; Human ; Middle Age ; Otitis Media/*radiography/surgery ; Temporal Bone/radiography ; *Tomography, X-Ray Computed

OBJECTIVE: To evaluated the characteristics, stage classification and treatment of external auditory canal cholesteatoma (EACC). METHOD: Fifty-nine cases (60 ears) with EACC undergoing surgery were retrospectively analyzed in our study. RESULT: Hearing impairment, otalgia and otorrhea were common symptoms of EACC patients. A total of 60 ears were classified into 4 stages: Stage I (26 ears) underwent canaloplasty, stage II (14 cars) underwent both canaloplasty and tympanoplasty, stage III (19 ears) underwent mastoidectomy, and stage IV (1 ear) required both canaloplasty and neoplasty of capsula articularis articulations temporomandibular. CONCLUSION Besides the lesion in external auditory canal, EACC also invaded into the middle ear and the temporal bone. Stage classification by the signs of the temporal bone computed tomography and the patients' clinical findings was helpful for surgery.
Adolescent ; Adult ; Aged ; Aged, 80 and over ; Child ; Child, Preschool ; Cholesteatoma ; diagnostic imaging ; surgery ; Ear Canal ; diagnostic imaging ; surgery ; Female ; Humans ; Male ; Middle Aged ; Neoplasm Staging ; Radiography ; Retrospective Studies ; Temporal Bone ; diagnostic imaging ; Tympanoplasty ; Young Adult