中枢神经系统表皮样囊肿的CT诊断

Central nervous system of the CT diagnosis of epidermoid cyst

目的 对于中枢神经系统表皮样囊肿的CT诊断进行分析探讨。方法 2007年12月～2010年12月笔者所在医院收治的中枢神经系统表皮样囊肿患者50例，男28例，女22例，年龄15-66岁，平均35．25岁，使用Sytec-Synergy螺旋CT诊断。结果 36例病灶位于桥小脑角区及桥前池，8例位于鞍上、鞍旁，3例位于颞区，3例位于额叶。根据肿瘤的密度表皮样囊肿可分为两型：典型者为均匀低密度，且密度低于脑脊液，或其内有少量条索样等密度，有44例，占88％；非典型者肿瘤实质呈混杂密度，瘤内或瘤壁有点、线状或弧形钙化，有6例，占12％。结论随着多层螺旋CT的应用，可多方位重建成像，CT诊断表皮样囊肿有着重要价值。

Objective The central nervous system epidermoid cyst of the analysis of CT diagnosis. Methods December 2007-December 2010 admitted to a hospital in the central nervous system epidermoid cysts,50 cases,28 males and 22 females,aged 15 - 66 years, mean age was 35.25 years. Sytec-Synergy using spiral CT diagnosis. Results 36 patients with lesions in the eerebellopontine angle and the bridge before the pool,and 8 in the saddle,the saddle next to 3 in the temporal region,3 in the frontal lobe. According to the density of epidermal cyst tumors can be divided into two types： those for the typical uniform density, and the density is lower than eerebrospinal fluid, or a small amount of cord-like and density. 44 cases, accounting for 88% ;atypical by tumor parenchyma was mixed density, tumor or aneurysm wall a bit,linear or are calcification. 6 cases, accounting for 12%. Conclusion With the application of spiral CT, can be multi-dimensional reconstruction imaging, CT diagnosis of epidermoid cyst has a significant value.