目的 :提高中后颅窝型三叉神经鞘瘤的切除程度和术后疗效。方法 :对收治 2 5例这类病例进行回顾性分析。结果 :15例手术行颞底 经天幕入路 ,余 10例行枕下乙状窦后等其他入路。肿瘤全切 2 2例 ,次全切除 2例 ,大部切除 1例。结论 :中后颅窝型三叉神经鞘瘤显微手术全切是其最佳方法 ,颞底 经天幕入路是一良好手术途径 ,其术野显露充分 ,易于达到肿瘤全切 ,微创 ,术后并发症少 Objective: To improve the resection degree and postoperative curative effect of the middle posterior fossa trigeminal schwannoma. Methods: Twenty-five cases were retrospectively analyzed. Results: Fifteen patients underwent transurethral approach at the temporal base and 10 underwent suboccipital sigmoid sinus surgery. Total resection of the tumor in 22 cases, subtotal resection in 2 cases, mostly in 1 case. Conclusions: Microsurgical total hysterectomy for the middle posterior fossa type trigeminal schwannoma is the best method. The transtibial approach through the canopy is a good surgical approach. The operative field is well exposed and easy to achieve complete tumor resection and minimally invasive surgery After complications less