A case of primary sclerosing
cholangitis associated with cystic dilatations of intrahepatic bile ducts
simulating Caroli's disease is described. The diagnosis of primary sclerosing
cholangitis was based upon cholangiogram features, liver histologic examination
and the association with chronic ulcerative colitis. It may be suggested
that the cystic dilatation of intrahepatic bile duct represents an extreme
form of the usual mild dilatations (cholangiectases) described in
primary sclerosing cholangitis. We suggest that cystic dilatation of intrahepatic
bile ducts could be included among the radiologic features of this disease.
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