颞骨岩部胆脂瘤

目的：探讨岩部胆脂瘤的临床特征及手术方法。方法：经迷路前上径路手术治疗1例，经迷路-耳蜗径路手术治疗8例。结果：术后8例随访2-9年，局部无胆脂瘤复发，其中2例面神经全程减压，术后未能恢复；1例术后2个月出现面肌运动，7个月后恢复正常，1例术后仅2个月，有待随访。结论：根据病变部位及侵犯范围选择适当的手术途径；术腔内填塞脂肪，封闭外耳道可防止脑脊液外漏。

Cholesteatoma in perrous part of temparal bone

Objective:To explore the clinic characteristic of petrous bone cholesteatoma.Method:One case was treated by supra labyrinth approach. 8 cases did by labyrinth cochlea approach.Result:After 2 to 9 years follow up in the 8 cases, no local cholesteatoma relapsion occurred. 2 cases were treated by facial nerve decompression and facial paralysis did not recover postoperatively. 1 case suffered from facial muscle movement 2 months after operation and recovered after 7 months later. 1 case still needs further follow up with 2 months postoperatively.Conclusion:Proper surgical approach should be selected according to location and invasion of disease. Packing with adipose tissue and blocking the external auditory meatus are effective methods to prevent the cerebrospinal fluid leak.