目的 :探讨舌咽神经痛的发病原因和手术治疗效果。方法 :对 30具正常成人脑标本 ,观察舌咽神经与小脑下后动脉的显微解剖关系 ;同时 ,对 2 0例舌咽神经痛患者 ,经乙状窦后进路行桥小脑角探查并舌咽神经切断术。结果 :30具成人脑标本的 6 0侧舌咽神经中 10侧神经与小脑下后动脉接触 ,神经血管接触率为 16 .7%。2 0例患者中 ,8例舌咽神经与小脑下后动脉粘连并受其压迫。 2 0例均行舌咽神经切断术 ,术后止痛效果均好 ,15例随访 2～ 5年均未复发。结论 :血管压迫舌咽神经可能是舌咽神经痛的主要原因 ;舌咽神经痛切断术治疗本病疗效肯定 ,临床可以选择应用 Objective: To investigate the causes of glossopharyngeal neuralgia and surgical treatment. Methods: Twenty normal adult brain specimens were collected for the observation of the anatomical relationship between the glossopharyngeal nerve and the posterior inferior cerebellar artery. Meanwhile, 20 patients with glossopharyngeal neuralgia were examined by retrosiggating the cerebellopontine angle Pharyngeal nerve transection. Results: The 10 lateral nerves of 60 glossopharyngeal nerves in 30 adult brain specimens were contacted with the posterior inferior cerebellar artery. The contact rate of neurovascular vessels was 16.7%. Of the 20 patients, 8 had glossopharyngeal nerve adhesions with the posterior subclavian artery and were oppressed. Twenty cases underwent glossopharyngeal nerve resection, and the postoperative analgesic effect was good. All 15 cases were followed up for 2 to 5 years without recurrence. Conclusion: Vasopression of glossopharyngeal nerve may be the main reason of glossopharyngeal neuralgia; glossopharyngeal neuralgia is effective in treating this disease, and clinical application can be selected