[Internal biliary fistula of lithiasic origin].

The authors present 17 cases of patients with internal biliary fistulae of lithiasic origin. Nine of these were of the cholecystoduodenal type, 2 of the cholecysto-gastric type, 2 had developed between the cholecyst and the colon, and 4 were of the bilio-biliary type, between the cholecyst and the choledochus. These cases represented 1.