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目的:探讨利用术前MRI 3D重建技术定位臂丛神经鞘瘤，并结合术中肌电监测在臂丛神经鞘瘤手术治疗中的应用价值。方法:分析16例良性臂丛神经鞘瘤病例，术前均行MRI检查，并利用3D重建技术定位肿瘤，术中显露神经鞘瘤后，均在术中肌电监测下确定安全区，从安全区进入，显微切除肿瘤。结果:16例均完全切除肿瘤，术后均未发生明显并发症。随访3～40个月，肿瘤无复发，预后良好。结论:术前MRI 3D重建技术定位臂丛神经鞘瘤，术中行肌电监测，确定安全区后进行神经鞘瘤的手术切除，有助于提高手术的安全性，避免并发症的发生。“,”Objective:To explore the application value of preoperative 3D reconstruction of MRI in localization of brachial plexus neurilemmoma combined with intraoperative neurophysiological monitoring in the surgical treatment of brachial plexus neurilemmoma.Methods:Sixteen cases of benign brachial plexus neurilemmoma were analyzed. MRI was performed before the operation, and the tumors were located by 3D reconstruction technique. After the neurilemmoma was exposed during the operation, the safe area was determined by neurophysiological monitoring, and the tumors were removed by microsurgery.Results:All the neurilemmoma of the 16 cases were completely resected and no obvious complications occurred. The follow-up period ranged from 3 to 40 months. There was no recurrence and the prognosis was good.Conclusion:The preoperative localization of brachial plexus neurilemmoma with 3D reconstruction of MRI, intraoperative neurophysiological monitoring and surgical resection of neurilemmoma after determining the safe area are helpful to improve the safety of operation and avoid complications.