颅内颅中窝底、岩尖部肿瘤位置较深 ,经常规颅中窝手术常需切除Ｌａｂｂｅ静脉前颞下回、颞中回脑组织 ,才得以充分暴露 ,可能损伤导致并发症多 ,所以手术入路对术中肿瘤暴露及全切除有很大关系。１９９５年１２月～２００１年６月 ,作者采用颧弓扩大翼点入路经硬膜下显微镜下 Intracranial fossa midfielder, petrous apex tumor deep, conventional cranialfossa surgery often need to remove the anterior inferior temporal gyrus of the Labbe veins, temporal back brain tissue, was fully exposed, may lead to complications and more damage, so Surgical approach to intraoperative tumor exposure and total resection have a great relationship. December 1995 ~ June 2001, the authors use zygomatic arch to expand the pterional approach by subdural microscopy