尾肠囊肿的影像学表现  

Imaging Features of Tailgut Cyst

作　　者：靳勇 柯腾飞 JING Yong;KE Teng-fei(Department of Radiology,Changzhi people’s hospital,Changzhi 046000,Shanxi Province,China;Department of Radiology,the Third Affiliated Hospital of Kunming Medical University,Kunming 650000,Yunnan Province,China)

机构地区：[1]山西省长治市人民医院影像中心,山西长治046000 [2]昆明医科大学第三附属医院放射科,云南昆明650000

出　　处：《中国CT和MRI杂志》2023年第1期138-140,共3页Chinese Journal of CT and MRI

基　　金：云南省科技厅昆明医科大学应用基础研究联合专项(202001AY070001-072)。

摘　　要：目的 探讨尾肠囊肿的影像学特征。方法 回顾性分析6例尾肠囊肿的CT、MRI表现,4例均行腹部CT和MRI平扫加增强检查,1例行CT平扫,1例行MRI平扫加增强。结果 所有病变均发生于骶前间隙,4例表现为不规则形多囊改变、2例呈类圆形单囊改变,与周围组织分界清楚,(1)CT表现:呈水样或软组织样密度,囊壁及分隔均未见钙化,增强扫描囊内容物未见强化,囊壁及分隔可有强化;(2)MRI表现:T1WI信号多变,T2WI呈高信号,DWI呈高信号表现,增强扫描囊壁及分隔可有强化而囊内容物无强化。结论 MRI尤其是DWI序列有助于尾肠囊肿的定性诊断。Objective To investigate the imaging features of tailgut cyst. Methods CT and MRI findings of 6 cases of caudal cyst were retrospectively analyzed. All 4 cases underwent abdominal CT and MRI plain scan plus enhancement examination, 1 case underwent CT plain scan and 1 case underwent MRI plain scan plus enhancement. Results All lesions occurred in the presacral space, 4 cases showed irregular polycystic changes, 2 cases showed circular monocystic changes, with clear boundaries.(1) CT findings: water-like or soft-tissue like density, no obvious solid components in the capsule, no calcification in the capsule walls and compartments, no enhancement in the contents of the enhanced scanning capsule, and enhancement in the capsule walls and compartments.(2) MRI manifestations: T1WI signals are variable, T2WI signals are high, DWI signals are high, enhanced scan capsule wall and partition can be enhanced, but the capsule contents are not. Conclusion MRI especially DWI sequence is helpful for qualitative diagnosis of caudal cyst.

关 键 词：计算机断层成像 磁共振成像 尾肠囊肿 

分 类 号：R445[医药卫生—影像医学与核医学]