十二指肠乳头癌的CT、MRI影像特征

摘要

分析总结15例十二指肠乳头癌的CT、MRI表现,结果显示其下述特征:十二指肠乳头癌肿与十二指肠壁形成“靶征”或“钻戒征”;环形强化的胆总管/胰管末端肿块;癌肿累及乳头周围肠壁可使肠壁增厚.MRI冠状位和多平面重建(MPR)有助于这些特征的显示,使早期诊断十二指肠乳头癌成为可能.%In this article,we reviewed the CT/MRI imaging features of carcinoma of the duodenal papilla in 15 cases.The characteristic CT and MR imaging findings of duodenal papillary carcinoma included mass in the descending part of the duodenum,the mass and duodenum wall showed a "target" sign or " diamond ring" sign;a ring-enhancing lesions around the distal end of the common bile duct/pancreatic duct,and thickening of the wall of the second portion of the duodenum near the papilla.The use of MPR MDCT images and MRI coronal images are very useful to show these imaging features as an aid in early diagnosis of carcinoma of the duodenal papilla.