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Dynamic－enhanced Helical CT Characteristic of Hilar Cholangiocarcinoma with Pathologic Correlation
高剑波 孔祥泉 张智栩 杨学华 陈学军 周志刚 郭华 岳松伟
GAO Jianbo，KONGXiangquan，ZHANG Zhixu，et al.DepartmentofRadiology，The Affiliated Union Hospital，Tongji Medical College，Huazhong University of Science and Techology，Wuhan，Hubei Province 430022，P.R.China
Abstract
Objective：To evaluate diagnostic value of contrast－enhanced helical CT in hilar cholangiocarcinoma by correlating the CT appearances with pathologic basis.
Materials and Methods：28 patients with pathologically proven hilar cholangiocarcinoma were performed unenhanced，multi－phase dynamic contrast enhanced CT scanning，attenuation of tumor relative to the liver was mainly observed.
Results：Hilar cholangiocarcinomas were mainly shown as irregular hypodensity soft tissue mass.75％（21/28）lesion can be manifested distinctly in portal venous phase（VP）（n＝10）and delayed phase（DP）（n＝11），19 patients had delayed contrast enhancement features，the rate of contrast enhancement was 67.9％（19/28）；moreover，ancillary findings including the intrahepatic biliary ducts，hepatic lobar atrophy，The abnomal enhancement areas peripheral to the tumor were also seen in helical CT. | 
