[Carcinosarcoma of the gallbladder]

The authors present a case of carcinosarcoma of the gallbladder, discussing its possible histological origin, clinical picture, and recommended therapeutic approaches. Only 30 cases have so far been reported. The case described was seen because of a painless large volume mass in the right hypochondrium. She was surgically treated with a complete resection of the gross tumor including a portion of choledochus, followed by chemotherapy. The survival was of 20 months.