[Intrahepatic cholangiocarcinoma on a hydatidic cyst]. / Colangiocarcinoma intrahepático sobre quiste hidatídico.

Cholangiocarcinomas are malignant tumors arising from the bile ducts. One of the factors associated with the development of malignancy is parasitic infections by helminths trematodes that cause liver fluke infections. This association is very common in south-east Asia, but association with liver hydatidosis has not been reported in the scientific literature. We report a case in which these two diseases were associated and required non-radical surgical treatment, since radiological findings were not suspicious for these entities.