放射学实践
放射學實踐
방사학실천
RADIOLOGIC PRACTICE
2001年
2期
90-91
,共2页
胆管癌 MR MRCP 胆管扩张
膽管癌 MR MRCP 膽管擴張
담관암 MR MRCP 담관확장
目的：探讨胆管癌的MR表现及鉴别诊断。方法：收集32例经手术、病理证实的胆管癌，回顾性分析其MR表现。结果：肝内胆管癌2例，MR表现为肝内块状长T1长T2信号，可见中心瘢痕、卫星结节、增强后呈中度环形强化。肝门胆管癌18例，MR表现为肝内胆管扩张，胆总管或左右肝管起始部狭窄、充盈缺损、肝门软组织肿块。中下段胆管癌12例，MR表现为肝内胆管扩张、病变以上胆总管扩张、病变处胆总管狭窄、中断及周围软组织肿块。MRCP对扩张的肝内胆管、胆总管及狭窄端胆总管形态显示良好。结论：肝内胆管癌及肝门部胆管癌根据MR表现不难作出诊断，胆总管癌须认真分析MR及MRCP表现，鉴别其他低位梗阻性胆道疾病后作出诊断。
目的：探討膽管癌的MR錶現及鑒彆診斷。方法：收集32例經手術、病理證實的膽管癌，迴顧性分析其MR錶現。結果：肝內膽管癌2例，MR錶現為肝內塊狀長T1長T2信號，可見中心瘢痕、衛星結節、增彊後呈中度環形彊化。肝門膽管癌18例，MR錶現為肝內膽管擴張，膽總管或左右肝管起始部狹窄、充盈缺損、肝門軟組織腫塊。中下段膽管癌12例，MR錶現為肝內膽管擴張、病變以上膽總管擴張、病變處膽總管狹窄、中斷及週圍軟組織腫塊。MRCP對擴張的肝內膽管、膽總管及狹窄耑膽總管形態顯示良好。結論：肝內膽管癌及肝門部膽管癌根據MR錶現不難作齣診斷，膽總管癌鬚認真分析MR及MRCP錶現，鑒彆其他低位梗阻性膽道疾病後作齣診斷。
목적：탐토담관암적MR표현급감별진단。방법：수집32례경수술、병리증실적담관암，회고성분석기MR표현。결과：간내담관암2례，MR표현위간내괴상장T1장T2신호，가견중심반흔、위성결절、증강후정중도배형강화。간문담관암18례，MR표현위간내담관확장，담총관혹좌우간관기시부협착、충영결손、간문연조직종괴。중하단담관암12례，MR표현위간내담관확장、병변이상담총관확장、병변처담총관협착、중단급주위연조직종괴。MRCP대확장적간내담관、담총관급협착단담총관형태현시량호。결론：간내담관암급간문부담관암근거MR표현불난작출진단，담총관암수인진분석MR급MRCP표현，감별기타저위경조성담도질병후작출진단。
Objective:To investigate MR findings and differential diagnosisof cholangiocarcinoma.Methods:MR findings of 32 cases of cholangiocarcinoma proved surgically and pathologically were analyzed retrospectively.Rusults:①The characteristic appearance of intrahepatic cholangiocarcinoma(n=2 ) was a large mass with an irregular margin,satellite nodules,and a central scar.Tumor was hypointense on T1WI and hyperintense on T2WI, and characteristically showed mild or moderate rim enhancement on enhanced MRI.②The MR findings of hilar cholangiocarcinoma (n=18) included intrahepatic biliary dilatation,narrowing or filling defect of left or right duct or common hepatc duct, and soft tissue mass at hilum of liver.③The MR findings of extrahepatic cholangiocarcinoma (n=12) appeared as dilatation of intrahepatic bile duct and the segment of CBD above the lesion, and narrowing,interruption of the segment of CBD invaded by the tumor and soft tissue mass around CBD. Of those imaging findings the position and shape of dilatation,narrowing or filling defect were visualized clearly on MRCP.Conclusion:It is not difficult to make a diagnosis of intrahepatic and hilar cholangiocarcinoma based on MR findings,but CBD carcinoma should be differentiated from other obstructive diseases at lower segment of CBD.
