Intrahepatic mucinous biliary cystadenoma.

Mucinous biliary cystadenoma (MBC) is a very rare cystic tumour of the liver usually occurring in middleaged women. This condition is difficult to diagnose before surgery; differential diagnosis with hydatid disease of the liver has to be done and is difficult to distinguish from mucinous biliary cystadenocarcinoma. We report two diagnosed and treated cases of intrahepatic MBC.