Polyposis coli preceded by hepatocellular carcinoma: report of a case.

A case of polyposis coli preceded by hepatocellular carcinoma and epidermoid cysts is described. Only one other documented case of hepatoma in association with polyposis coli has been reported in the literature. This patient is not only the youngest to develop an extracolonic malignancy, but has also been fortunate to survive a disease often considered fatal. The possibility of a polyposis-linked resistance to extracolonic malignancies is discussed.