Intra-bile duct growth of hepatocellular carcinoma: value of biliary dilatation on CT |
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Authors: | K Abe H Honda T Hayashi A Kawashima T Fukuya Y Tateshi Y Nakamura E Adachi T Matsumata K Masuda |
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Affiliation: | Department of Radiology, Faculty of Medicine, Kyushu University. |
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Abstract: | In order to evaluate the usefulness of CT in demonstrating biliary invasion by hepatocellular carcinoma, 191 surgically proved cases were studied. Among 191 CT scans performed before surgery, six (3%) showed biliary dilatation. Pathological biliary invasion was found in eight cases (4%). Of these eight cases, four cases (50%) showed biliary dilatation on CT. In six cases with biliary dilatation on CT, pathological biliary invasion was revealed in four cases (67%). In two cases, the large (> or = 6cm) encapsulated tumors located in the hepatic hilum dilated the intrahepatic bile duct without intraductal tumor growth. We concluded that biliary dilatation on CT cannot be a sign of biliary invasion by hepatocellular carcinoma. |
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