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目的：总结分析显微手术治疗桥小脑角肿瘤的疗效。方法：42例术前均经CT及MRI扫描确诊，手术经枕下入路，应用显微外科技术切除肿瘤，寻找并保留面、听神经。结果：肿瘤全切除35例，近全切除4例，大部切除3例，面、听神经保留28例，恢复听力14例，死亡1例。随访10月至5年，并经CT复查见肿瘤复发1例。结论：经枕下入路手术方法是可行的。提高手术疗效的夫键：（1）良好的暴露肿瘤；（2）掌握显微外科技术、分块切除肿瘤；（3）寻找和及时发现而、听神经是保留该神经之关键；（4）防止损伤小脑前下动脉。
Objective: To summarize and analyze the effect of microsurgical treatment of cerebellopontine angle tumors. Methods: Forty - two patients were diagnosed by CT and MRI before operation. The patients underwent suboccipital approach. Microsurgery was performed to remove the tumor and to look for and retain the surface and auditory nerve. Results: Totally resected tumor in 35 cases, nearly total resection in 4 cases, partial resection in 3 cases, facial, auditory nerve retention in 28 cases, recovery of hearing in 14 cases, 1 case of death. Follow-up from 10 months to 5 years, and 1 case of tumor recurrence after CT review. Conclusion: Transoccipital approach is feasible. (2) to master the microsurgical techniques, block removal of the tumor; (3) to find and timely detection, the auditory nerve is the nerve to retain the key; (4) to prevent Injury of the anterior inferior cerebellar artery.