岩斜区由于解剖位置深在 ,周围结构复杂 ,手术暴露和处理相当困难。近年来通过乙状窦前入路切除 2 3例岩斜区肿瘤 ,效果满意 ,现报道如下。1　资料与方法1 .1　一般资料2 3例病人中男 1 3例 ,女 1 0例 ;年龄 2 1～ 6 1岁 ,平均 4 3岁。病程 3个月至 1年 ,平均 2 1个月。脑膜瘤 Due to the deep anatomical location of the petroclival region and the complex surrounding structures, it is quite difficult to expose and process the petroclival region. In recent years, resection of sigmoid sinus anterior approach 23 cases of petroclival tumors, the results are satisfactory, are reported below. 1 Materials and Methods 1.1 General Information 23 cases of patients male 13 cases, female 10 cases; age 21 ~ 61, average 43 years old. Duration of 3 months to 1 year, an average of 21 months. Meningioma