1998年11月～1999年12月,我们利用乙状窦前入路治疗岩尖斜坡肿瘤3例,显示了良好的结果。现报告如下。例1:女,48岁。因阵发性头痛4年,加重1个月余,伴有左侧上下肢体活动不便而入院。查体:双侧视乳头轻度水肿,左侧肢体肌力级,肌张力增高,左侧巴氏征阳性。CT显示右侧岩骨尖有一骑? From November 1998 to December 1999, we used three sigmoid sinus anterior approach for the treatment of petroclival tumors and showed good results. The report is as follows. Example 1: Female, 48 years old. Due to paroxysmal headache for 4 years, increased more than 1 month, accompanied by left upper and lower extremity movement inconvenience and admission. Physical examination: bilateral optic canal mild edema, left limb muscle strength class, increased muscle tone, positive left Pakistan’s sign. CT shows the right side of the rock bone tip a ride?