岩斜区肿瘤位置深在、与脑干关系密切,手术风险极大,尽管枕下乙状窦后入路是切除该区肿瘤的有效入路,但难以全切、病残率较高,对神经外科医生充满了极大的挑战。随着颅底外科、内窥镜技术、显微外科的发展,该入路不断拓展,现综述如下。1发展历史1925年,Dandy首先提出枕下乙状窦 The petroclival area is deep in the tumor and has a close relationship with the brain stem. The operation risk is very great. Although the suboccipital sigmoid sinus posterior approach is an effective way to remove the tumor in this area, it is difficult to cut it completely. Neurosurgeons are full of great challenges. With the skull base surgery, endoscopic technology, microsurgical development, the expansion of the road, are summarized below. A history of development In 1925, Dandy first proposed suboccipital sigmoid sinus