中枢神经系统肠源性囊肿的MRI表现与诊断

MRI and diagnosis of enterogenous cyst of central nervous system

目的:研究中枢神经系统肠源性囊肿的MRI表现及鉴别诊断,旨在提高对该病的诊断水平。方法:回顾性分析经手术及病理证实的9例肠源性囊肿患者的MRI表现。结果:本组9例患者中,囊肿均呈类圆形或梭形。多数肠源性囊肿T1WI呈均匀或不均匀的低信号,1例呈等信号;T2WI呈高信号;增强扫描后均无强化。结论:MRI对肠源性囊肿的诊断具有重要的价值,但缺乏特异性,结合肠源性囊肿的发生部位、形态及临床表现等信息,可减少肠源性囊肿的误诊率。

Objective：To study MRI features and differential diagnosis of entcrogenous cyst, and to improve the diagnostic accuracy of this disease. Methods：The MRI appearence of 9 patients with enterogenous cyst proved by surgery and pathology were reviewed retrospectively. Results： Of the 9 patients, all the enterogenoas cysts were generally oval or fusiform in shape. The signals were all even or uneven hypointensity on T1WI except 1 case displayed isointeasity. All the cases were hyperintettsity on T2WI. There was no markedly enhanco- ment of the cyst. Condusion： MR/has important value in the diagnosis of the enterogenous cysts, but there is no specificity. In coMbination with tbe information of location, shape and clinical findings, the misdiagnosis rates could be decreased.