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分析了手术和病理证实的听神经瘤６０例的ＣＴ表现，以下特征有助确诊：（１）平扫时病灶为低密度或低等混合密度，增强后多呈不均匀强化，囊变坏死区无增强。（２）平扫时病灶边界欠清，边缘模糊，增强后境界清楚。（３）肿瘤多以内听道口为中心生长，并与岩骨呈锐角相贴。（４）肿瘤所在侧桥小脑角池扩大或为肿瘤闭塞。（５）内听道扩大，有时可见骨质吸收。肿瘤须与脑膜瘤、三叉神经瘤、胆脂瘤、蛛网膜囊肿鉴别
The CT features of 60 cases of acoustic neuroma confirmed by surgery and pathology were analyzed. The following features were helpful for the diagnosis: (1) The density of the lesion was low density or low density after plain scan, mostly unevenly enhanced after enhancement, and no cystic necrosis Enhanced. (2) when the lesion border scan less clear, fuzzy edge, enhanced realm clear. (3) Tumor mostly hear within the mouth as the center of growth, and the acute angle with the rock bone paste. (4) the side of the tumor where the cerebellopontine angle enlargement or tumor occlusion. (5) Enlarge the auditory canal, sometimes visible bone absorption. The tumor should be identified with meningioma, trigeminal neuroma, cholesteatoma and arachnoid cyst