颅脑手术发生延迟脑脊液漏较少见[1],但一旦发生脑脊液漏是手术比较严重的并发症之一,易发生颅内感染及气颅[2],导致病人死亡。本次研究总结了2005年1月～2007年3月3例幕上、下经岩骨乙状窦前入路颅内肿瘤术后延迟性脑脊液漏的病例。报道如下。例1:患者男性,56岁,患左侧桥小脑 Delayed cerebrospinal fluid leakage in craniocerebral surgery less common [1], but in the event of cerebrospinal fluid leakage is one of the more serious complications of surgery, prone to intracranial infection and pneumocephalus [2], resulting in patient death. This study summarizes the cases from January 2005 to March 2007, three cases of delayed supratentorial cerebrospinal fluid leakage after the supratentorial sigmoid sinus approach. Reported as follows. Example 1: Male patient, 56 years old, suffering from the left cerebellopontine