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目的：分析桥小脑角脑膜瘤的MRI表现，提高对桥小脑角区脑膜瘤的MRI诊断准确率。材料与方法：搜集了一组经华山医院及本院手术病理证实的桥小脑角区脑膜瘤15例，全部行MRI平扫及增强。结果：TWI上8例与脑实质相近信号，占总病例53．3％，4例稍低于脑实质信号，占总病例的26．7％，3例以不均匀混杂信号显示，3例呈高低混杂信号。结论：MRI在桥小脑角脑膜瘤的定位、定性及鉴别诊断中有重要价值。
Objective: To analyze the MRI manifestations of cerebellopontine angle meningioma and to improve the MRI diagnostic accuracy of cerebellopontine angle meningioma. Materials and Methods: A group of 15 cases of cerebellopontine angle meningiomas confirmed by surgery and pathology were collected from Huashan Hospital and our hospital. All patients underwent MRI scan and enhancement. Results: Eight signals on the TWI were similar to the brain parenchyma, accounting for 53.3% of the total cases. Four cases were slightly lower than the brain parenchyma signals, accounting for 26.7% of the total cases. Three cases showed heterogeneous mixed signals and three cases showed High and low mixed signal. Conclusion: MRI is of great value in the localization, qualitative and differential diagnosis of cerebellopontine angle meningioma.