近3年来,我院对传统的枕下乙状窦后入路切除桥小脑角肿瘤的方法进行了改良,采用乳突后小骨窗开颅、游离骨瓣和肿瘤切除后骨瓣复位的方法;通过临床实践表明,改良方法在肿瘤切除效果和面、听神经解剖保留方面效果均满意,报告如下。1资料与方法1·1临床资料2005年11月至2008年12月 In the past three years, our hospital has improved the method of resecting the bridge of the cerebellopontine angle of the cerebellopontine by the posterior suboccipital sigmoid sinus surgery. The method of craniotomy with posterior small bone window, free bone flap and resection of the bone flap after tumor resection, Through clinical practice shows that the modified method in the tumor resection effect and surface, the auditory nerve preservation retention are satisfactory, the report is as follows. 1 Materials and Methods 1.1 Clinical Data November 2005 to December 2008