Abstract
Objective To determine the value of multi-detector CT (MDCT) in the preoperative evaluation of hilar cholangioearcinoma. Methods Thirty-one cases of hilar cholangiocarcinoma proved by histopathology were analyzed retrospectively. The MDCT scan was studied in order to observe the size, location, enhancement pattern of the lesions, extent of tumor involvement and indirect signs (such as the dilation of intrahepatic ducts and the changes of the liver and the gallbladder). Finally,the resectability of hilar cholangiocarcinoma was evaluated. Results The coincidence rate of MDCT reached 93.5% in the diagnosis of hilar cholangiocarcinoma. Most cases (77.4%) were judged cor-rectly in the location of obstruction by comparison with surgicohistopathology. The overall accuracy of MDCT in the estimation of TNM stages was 71.0%, while that of stage Ⅰ 100%. Conclusion MDCT can demonstrate the hilar cholangiocarcinoma and assess the extent of tumor involvement. It is helpful in the preoperative diagnosis and the treatment planning. Key words: Bile duct neoplasms; Tomography, X-ray computed
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