十二指肠乳头旁憩室的CT表现特征  

CT features of the juxtapapillary duodenal diverticula

作　　者：张国华[1] 陈运奎 郑辉[1] 

机构地区：[1]浙江省台州市第一人民医院放射科,浙江台州318020

出　　处：《医学影像学杂志》2011年第11期1702-1704,共3页Journal of Medical Imaging

摘　　要：目的:探讨十二指肠乳头旁憩室的CT表现特点,提高诊断正确率。方法:回顾性分析上腹部CT检查中发现十二指肠乳头旁憩室23例,并进行上消化道造影进一步证实。结果:23例中低年资医生漏诊8例,高年资医生均诊断为十二指肠憩室。CT表现十二指肠框内圆形、半圆形囊袋状,突出于肠管小弯侧壁外,囊袋内可见气液平面,残留内容物较多时呈网状阴影,增强后囊壁强化与十二指肠壁强化一致。结论:十二指肠乳头旁憩室上腹部CT检查有一定的特征性,当疑为本病时,可进一步作上消化道造影或内镜检查。Objective：To explore CT characteristics of the juxtapapillary duodenal diverticulum so as to improve the diagnostic accuracy.Methods：CT findings of 23 cases with juxtapapillary duodenal diverticulum,which were found by abdominal CT scans and further confirmed by upper gastrointestinal examination,were analysed retrospectively.Results：In this group,the juxtapapillary duodenal diverticulum was missed in 8 of 23 cases on CT by junior radiologists,the missed diagnositic rate was 34.8%,and all were correctly diagnosed by senior radiologists.All of juxtapapillary duodenal diverticulum on CT were showed as airbag shadow within duodenal loop posterior pancreatic head,protruding out of interior duodenal wall,with air-liquid level in it or reticular shadows when it contained residual contents.In 7 cases of oral positive contrast medium,5 cases showed contrast medium directly getting into the capsule.Multiplanar reconstruction in 12 cases of this group more intuitively displayed the morphology of diverticulitis and the relationship between diverticulitis and intestine.The findings of CT were consistency with upper gastrointestinal examination in all cases.Conclusion：The findings of juxtapapillary duodenal diverticulum on abdominal CT have some characteristics.As the disease suspected,upper gastrointestinal examination may be necessary to futher comfirm the diagnosis.

关 键 词：十二指肠憩室 体层摄影术 X线计算机 

分 类 号：R574.51[医药卫生—消化系统] R814.42[医药卫生—内科学]