中枢神经系统肠源性囊肿影像学表现  

Image features of enterogenous cysts in central nervous system

作　　者：许化致[1] 孙波[2] 陈伟建[1] 李建策[1] 

机构地区：[1]温州医学院附属第一医院放射科,浙江温州325000 [2]北京天坛医院神经影像中心,北京100050

出　　处：《中国临床医学影像杂志》2007年第12期841-843,共3页Journal of China Clinic Medical Imaging

摘　　要：目的:探讨中枢神经系统肠源性囊肿的影像学表现。方法:收集经手术病理证实的肠源性囊肿12例,分析其影像学表现。结果:桥前池、桥小脑角池2例,脊髓腹侧髓外硬膜下间隙9例,背侧髓外硬膜下间隙1例,"脊髓嵌入症"8例。1例CT平扫等脑脊液密度。8例T1WI、T2WI类似脑脊液信号;3例T1WI、T2WI信号混杂。增强扫描,仅1例边缘轻度半环状强化。结论:中枢神经系统肠源性囊肿影像学表现具有一定的特征,MRI具有一定的诊断价值。Objective： To study the imaging features of enterogenous cysts in central nervous system. Methods： The clinical data including 12 cases of neurenteric cyst confirmed by surgery and pathology were collected and analyzed. Results： In the 2 intracranial cases, lesions located in anterior pontine cistern, the remaining 10 intraspinal cases were in intradural-extramedulla space, among which, 9 occurred in cervical segments, 1 in lumbar segment, 9 located anterior to the spinal cord and 1 posterior. In the intraspinal cases, 8 cases showed spinal cord incuneation. 9 cases showed isointense to CSF, 3 cases showed slightly hyperintense than CSF on T1WI, heterogenous hyperintense on T2WI, one lesion had restricted diffusion. All lesions had no enhancement on postcontrast images. Conclusion： To certain extent, the image manifestation of enterogenous cysts in central nervous system is characteristic, and MRI can make a correct diagnosis preoperatively.

关 键 词：中枢神经系统囊肿 磁共振成像 

分 类 号：R742[医药卫生—神经病学与精神病学] R445.2[医药卫生—临床医学]