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Posterior petrosal Meningiomas
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF NEUROSURGERY
- Issue:
- 3
- DOI:
- 10.3760/j.issn:1001-2346.2003.03.002
- Key Word:
- 岩骨后脑膜瘤;分型;显微外科
Abstract： 目的探讨岩骨后脑膜瘤的分型及手术治疗效果.方法对82例经显微手术治疗的岩骨后脑膜瘤进行回顾性分析.根据肿瘤基底附着岩骨后面的不同,分为三型:Ⅰ型肿瘤基底位于内听道外侧的岩骨后面;Ⅱ型肿瘤基底位于内听道内侧的岩骨后面,可向海绵窦、斜坡生长;Ⅲ型肿瘤广基附着于岩骨后面,可包绕面听神经或长入内听道内.结果本组82例全切除肿瘤68例,全切除率83%,面神经解剖保留率98%,面神经功能保留率81%,听力保留率67%.Ⅰ型28例 100%全切除,面神经均解剖保留,功能保留率93%;Ⅱ型32例全切除率75%,面神经解剖保留率97%,功能保留率75%;Ⅲ型22例全切除率73%,面神经解剖保留率95%,功能保留率73%.结论Ⅱ、Ⅲ型比Ⅰ型全切除困难且术后神经功能损伤相对明显.在保证神经功能完整的基础上尽可能地全切除肿瘤.
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