肝外胆管细胞癌的CT诊断

目的:分析肝外胆管细胞癌的CT表现,探讨其诊断价值。材料和方法:23例病理证实的肝外胆管癌均行螺旋CT动态增强检查和ERCP检查,分析其影像表现和诊断准确性。结果:CT诊断符合率78.3%(18/23),均表现为特征软组织肿块(直接征象)和肝内胆管及胆总管扩张(间接征象)。CT同时提供了较好的肿瘤分期诊断。ERCP诊断符合率91.3%(21/23),表现为肝内胆管均呈不同程度的扩张,肝外胆管狭窄、截断。CT结合ERCP后全部诊断正确,并提供详细信息。结论:肝外胆管细胞癌的螺旋CT检查有较好的诊断,结合ERCP可以获得更高的诊断准确率。

CT Diagnosis of Extrahepatic Cholangiocarcinoma

Purpose:To analyze the CT findings of extrahepatic cholangiocarcinoma(EC)and evaluate its diagnostic value.Materials and Methods:Twenty-three patients who were diagnosed EC by pathology were undergone the dynamic enhanced CT scan and endoscopic retrograde cholangiopancreatography(ERCP),The findings and the diagnostic accuracy of the examination were evaluated.Results:A correct CT di-agnosis was found in18patients(78.3%),who all showed the characteristic soft tissue mass(direct sign)and dilation of bile ducts(indirect sign).A good CT staging diagnosis was obtained in the mean time.A correct ERCP diagnosis was found in21patients(91.3%),who showed dilation of intrahepatic bile ducts and stricture or cut-off of extrahepatic bile duct.Combination of CT and ERCP provided the correct diagnosis in all patients and also the detail information.Conclusion:The EC could be well diagnosed with spiral CT scan,and better diagnosed combining with ERCP examination.