Squamous cell carcinoma originating in an hepatic cyst. Case report with a review of the hepatic cyst-carcinoma association.

A case of squamous cell carcinoma originating in an hepatic cyst is presented. A review of the literature reveals five other cases of carcinoma arising within congenital intrahepatic cysts; three adenocarcinomas and two squamous cell carcinomas. Neoplastic transformation may also be seen in association with Meyenburg complexes, considered by some to be the structures from which congenital cysts arise.