岩斜区脑膜瘤由于位置深在,邻近脑干、基底动脉、Ⅲ-Ⅻ颅神经和海绵窦等重要结构,手术难度大[1]。随着颅底显微外科技术的发展,岩斜区手术入路朝着微侵袭方向发展,成功切除岩斜区脑膜瘤的报道日渐增多[2,3,4,5]。作者自2005年6月～2012年10月,采用枕下乙状窦后-内听道上入路 Due to the deep location of the petroclival meningioma, it is very difficult to operate with the important structures such as the brainstem, the basilar artery, the cranial nerves of the cranial nerves and the cavernous sinus [1]. With the development of skull base microsurgery technology, the surgical approach to petroclival region has been developing in the direction of micro-invasion. The success of resection of petroclival meningioma has been reported [2,3,4,5]. The author from June 2005 to October 2012, the use of suboccipital sigmoid sinus - the internal auditory canal approach