[HRCT findings in XXXX ].

@entity1 @entity850 @entity2103 @entity9905 @entity389 @entity1146 @entity85
PURPOSE: To define high resolution computed tomography findings in the external, middle and inner ear of @entity1 with @entity9905 and to emphasize the importance of these findings in the preoperative evaluation. MATERIALS AND METHODS: Twenty one @entity1 with @entity9905 (14 male, 7 female) aged between 1-30 years were evaluated with high resolution computed tomography of the temporal bone. A Toshiba TCT-600 scanner was used in 11 cases, and a Xvision/GX scanner was used in 10 cases. Sections 1 mm thick were obtained in axial and coronal projections using high bone detail algorithms. Sagittal reformations were also made when necessary. RESULTS: Forty-two ears in 21 @entity1 with @entity9905 were studied. These included 8 @entity1 with high bilateral and 13 with unilateral @entity9905 in which 8 @entity1 had right sided and 5 @entity1 had left sided @entity1146 . @entity850 of the external auditory canal was found in 11 ears, complete @entity1146 was found in 13 ears, incomplete @entity1146 was found in 1 ear. There was varied @entity85 in 18 ears. Anomalies of the stapes and oval window were found in 6 ears. An anteriorly located @entity2103 was identified in 11 ears. An inferiorly located tympanic segment of the facial nerve canal was identified in 2 ears, and 3 ears had an abnormal posterior orientation of the mandibular condyles. Only 2 @entity1 had associated @entity389 . CONCLUSION: High resolution computed tomography is an effective method for the evaluation of the anomalies of the external, middle and inner ear in @entity1 with @entity9905 and for planning the surgical treatment.
