第Ⅳ脑室囊性少突胶质细胞瘤合并Chiari畸形Ⅲ型、寰枢椎裂一例报道及文献复习
Chinese Journal of Brain Diseases and Rehabilitatin(Electronic Edition)（2015）
Abstract
Chiari畸形又称小脑扁桃体下疝畸形(arnold-chiari malformation,ACM),是因后颅脑先天性发育异常,以后颅窝容积缩小、小脑扁桃体甚至延髓和部分Ⅳ脑室向下进入椎管腔为主要特征的先天性颅颈交界区发育畸形,目前根据其病理特征分为四型,其中Ⅲ、Ⅳ型较为罕见,Ⅲ型主要表现为小脑及后颅窝内容物的脑脊膜膨出,多在新生儿时期发病,常合并出现脊髓空洞症、脑积水、枕骨大孔区畸形等[1-3].少突胶质细胞瘤是一种来源于神经上皮组织的胶质瘤亚型,多发生于成人幕上,幕下发生率很低,报道也较少[4].本文报道1例Ⅳ脑室囊性少突胶质细胞瘤合并Chiari畸形Ⅲ型、寰枢椎裂病例,并复习相关文献.
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