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岩斜区位于颅底中央,位置深在,毗邻脑干,周边血管神经走行丰富[1],岩斜区脑膜瘤是岩斜区常见肿瘤,约占后颅窝脑膜瘤发生率的50%,肿瘤基底位于后颅窝上2/3斜坡和内听道以内岩骨嵴,起源自蛛网膜细胞或帽细胞[2]。目前岩斜区脑膜瘤的手术治疗策略仍存在一些争议,临床诊疗中应严格把握手术适应证,综合评估手术风险及预后疗效,争取以最安全、最简捷的手术方式尽可能彻底地切除肿瘤[3,4]。
Rock slope is located in the central skull base, deep in position, adjacent to the brainstem, the peripheral vascular nerves walked extensively [1], petroclival meningioma is a common petroclival petroclival tumor, accounting for about 50% of posterior fossa meningiomas, The tumor base is located on the posterior fossa on 2/3 slope and within the petrosal ridge within the auditory canal, originating from the arachnoid cells or cap cells [2]. Currently, there are still some controversies in the surgical treatment of petroclival meningiomas. Clinically, the surgical indications should be strictly followed, and the overall surgical risk and prognosis should be evaluated. The most safe and simple surgical procedure should be used to remove the tumor as completely as possible [ 3,4].