脊椎肠源性囊肿的MR诊断  

MRI Features of Spinal Enterogenous Cyst

作　　者：王琦[1] 王颖[1] 郭彦[2] 张雪峰[1] 郭雅茹[1] 

机构地区：[1]内蒙古自治区医院介入放射科MRI室,内蒙古呼和浩特010017 [2]内蒙古自治区医院病理科,内蒙古呼和浩特010017

出　　处：《实用放射学杂志》2008年第6期799-801,共3页Journal of Practical Radiology

摘　　要：目的探讨脊椎肠源性囊肿的MR特征。方法回顾性分析5例经手术和病理学证实的脊椎肠源性囊肿的MR特征,结合相关文献探讨其与椎管内囊性病变的鉴别诊断。结果5例脊椎肠源性囊肿中,位于颈椎2例,腰椎1例,腰骶椎1例,另1例位于尾骨末端直肠后方和皮下组织之间。其中4例发生在椎管内髓外硬膜下,位于脊髓腹侧3例,背侧1例。病变段脊髓受压移位,1例病变嵌入脊髓内,且同时合并脊髓纵裂畸形。而位于尾骨末端直肠后方和皮下组织之间者,与椎管腔不通。MR平扫见病灶T1WI呈类似或稍高于脑脊液信号,T2WI呈脑脊液样高信号,增强扫描病灶本身无强化。结论MRI在脊椎肠源性囊肿的诊断中具有重要的影像学价值。Objective To explore MRI features of spinal canal enterogenous cysts. Methods The MRI features and differential diagnosis of 5 patients with spinal canal enterogenous cysts proved by surgery and pathology were reviewed retrospectively in combination with literature review. Results Of 5 cases,the cysts localized at cervical spine in 2 ,lumbar spine in 1 ,lumbosacral spine in 1 and the end of coccyx between rectum and cuticulum in 1.4 cysts were located at subdura,including anterior to the spinal cord in 3 and posterior to the spinal cord in 1.1 cyst located the end of coccyx between rectum and cuticulum was uncommunicated with spinal canal and 1 case associated with diastematomyelia. The spinal cords were compressed and displaced. The cysts were iso or slightly hyperintensity compared to CSF on T1WI, and similar intensity to CSF on T2WI. The cysts had no markedly enhancement on contrast - enhanced MR scan. Conclusion MRI has important value in diagnosing spinal enterogenous cysts.

关 键 词：脊椎 肠源性囊肿 磁共振成像 

分 类 号：R681.5[医药卫生—骨科学] R445.2[医药卫生—外科学]