目的:探讨小脑脑桥角肿瘤与三叉神经痛的关系以及手术方案的选择。方法:采用耳后小切口乙状窦后入路进入小脑脑桥角切除小脑脑桥角肿瘤56例,对三叉神经进行减压。结果:55例一次性彻底切除肿瘤,1例切除2/3,术后三叉神经痛均立即消失,无严重并发症及死亡病例。结论:小脑脑桥角肿瘤压迫三叉神经根是引起三叉神经痛的原因之一,手术切除肿瘤可消除三叉神经痛。耳后小切口乙状窦后入路小脑脑桥角肿瘤切除术是理想的手术方式。内镜的使用可提高肿瘤的全切率,防止并发症。 Objective: To investigate the relationship between cerebellar pontine angle tumors and trigeminal neuralgia and the choice of surgical regimen. Methods: Sixty-six cases of cerebellopontine angle palsy were treated by small incision retrosigmoid approach into the cerebellopontine angle to decompress the trigeminal nerve. Results: Totally 55 cases were completely resected one time and 2 cases were removed. Trigeminal neuralgia disappeared immediately after operation. There were no serious complications and deaths. Conclusion: The cerebellar pontine angle tumor is one of the causes of trigeminal neuralgia due to oppression of the trigeminal nerve root. Surgical resection of the tumor can eliminate trigeminal neuralgia. Posterior small incision retrosigmoid approach cerebellar pontine angle tumor resection is the ideal surgical approach. Endoscopic use of the tumor can improve the rate of full-cut to prevent complications.