Cholangiosarcoma is a tumor of the connective tissues of the bile ducts.

Primary risk factors for cholangiosarcoma are Primary Sclerosing Cholangitis and infection by Clonorchis Sinensis (a fluke found in undercooked fish).

• Cholangiosarcoma entry in the public domain NCI Dictionary of Cancer Terms

 This article incorporates public domain material from Dictionary of Cancer Terms. U.S. National Cancer Institute.