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目的:总结桥小脑角区肿瘤的MRI表现,提高对桥小脑角区肿瘤的诊断水平。方法:回顾性分析65例经手术、病理证实的桥小脑角区肿瘤的MRI资料。结果:听神经瘤26例,脑膜瘤14例,胆脂瘤12例,三叉神经瘤8例,蛛网膜囊肿2例,脑干胶质瘤2例,颅咽管瘤1例。桥小脑角区肿瘤中最多见的是听神经瘤(40%)和脑膜瘤(21.5%)。结论:MRI可清晰显示桥小脑角区肿瘤的不同特点,对桥小脑角区肿瘤的诊断和鉴别诊断具有重要价值。
OBJECTIVE: To summarize the MRI findings of cerebellopontine angle tumors and to improve the diagnostic value of the cerebellopontine angle tumors. Methods: The MRI data of 65 cases of cerebellopontine angle tumor confirmed by operation and pathology were retrospectively analyzed. Results: 26 cases of acoustic neuroma, 14 cases of meningioma, 12 cases of cholesteatoma, 8 cases of trigeminal neuroma, 2 cases of arachnoid cyst, 2 cases of brain stem glioma and 1 case of craniopharyngioma. Acoustic neuroma (40%) and meningioma (21.5%) are the most common in cerebellopontine angle tumors. Conclusion: MRI can clearly show the different characteristics of the cerebellopontine angle of the tumor, the cerebellopontine angle of the tumor diagnosis and differential diagnosis of great value.