后颅窝颅底脑膜瘤是指位于斜坡、枕骨大孔、蝶岩斜坡区、岩斜区及桥小脑角区的肿瘤,瘤体直径>4.5cm者称为巨大型。由于肿瘤体积大,位置深在,且毗邻重要的血管、神经及脑干,手术治疗极为困难,多年来一直是神经外科有待攻克的难题之一。我科自1987年3月至1997年8月对11例患者采用显微手术治疗,均取得较好疗效,现报道如下。 Posterior fossa skull base meningioma refers to located in the slope, foramen magnum, butterfly rock slope area, petroclival area and bridge cerebellar angle of the tumor, the tumor diameter> 4.5cm were called giant. Due to its large size, deep location, and adjacent to important blood vessels, nerves and brain stem, surgical treatment is extremely difficult and has been one of the challenges to be overcome in neurosurgery for many years. Our department from March 1987 to August 1997 on 11 patients with microsurgical treatment, have achieved good results, are reported below.