小儿先天性胆总管囊肿的CT诊断  

CT Diagnosis of Congenital Choledochal Cyst in Children

作　　者：黄明霞[1] 张增俊[1] 韦建强[1] 张雅[1] 刘勃[1] 白慧萍[1] 谌天华[1] 曹玉琴[1] 

机构地区：[1]西安市儿童医院CT室,陕西西安710002

出　　处：《实用放射学杂志》2011年第3期434-436,共3页Journal of Practical Radiology

摘　　要：目的 探讨胆总管囊肿的CT表现及鉴别要点.方法 26例手术证实的胆总管囊肿患儿（5名男孩和21名女孩,年龄7 d^7岁,平均3.2 岁）,均经CT平扫,11例进行增强扫描.回顾性分析全部患者的CT资料.结果 据Todani＇s分类法,本组Ⅰ型20例,Ⅱ型1例,Ⅳ型3例,Ⅴ型2例.Ⅰ型CT平扫表现为肝、肾、胰头之间边缘光整的圆形囊性密度影,增强后,呈薄壁环形均匀强化 Ⅱ型CT平扫表现为胆总管外侧壁囊性低密度影.Ⅳ型CT 表现为肝内胆管及肝外胆管多发性低密度囊性扩张.Ⅴ型CT表现为肝内胆管囊状、柱状扩张.结论小儿先天性胆总管囊肿的CT表现有一定特征,并为诊断本病提供可靠信息.Objective To study the CT diagnosis and differential diagnosis of congenital choledochal cyst. Methods 26 pediatric patients（5 boys and 21 girls, aged from 7 days to 7 years, mean age, 3.2 yeare） with surgically proved congenital choledochal cyst underwent plain CT scans and 11 cases of them underwent contrast-enhanced CT examinations. CT data of all patients were retrospectively analyzed. Results Accoording to Todani＇s classification,there were typeⅠ in 20 cases,Ⅱ in 1 case, Ⅳ in 3 cases andⅤ in 2 cases. Type Ⅰappeared as round shadows with cystic density and smooth border between liver,kidney and pancreatic head. While on enhanced CT images,it appeared as thin wall and homogeneous-circular enhancement;type Ⅱappeared as a cystic low density in the lateral wall of common bile duct;type Ⅳ appeared as intra-and extrahepatic bile duct multiple cystic cholangiectasis;type Ⅴ appeared as intrahepatic bile duct cystic and column cholangiectasis. Conclusion CT findings of congenital choledochal cyst in children are of characteristic,which can provide the reliable informations in diagnosis of this disease.

关 键 词：胆道 胆总管囊肿 先天性 儿童 体层摄影术 X线计算机 

分 类 号：R575[医药卫生—消化系统] R814.42[医药卫生—内科学]