[Conservative treatment of hepaticocholedochus stones via external biliary fistulae].

The experience with non-surgical treatment of retained stones in 13 patients is described. The treatment was successful in 8 cases. The method of dissolution of the stones and their mechanical removal with the help of a lithotrap of own design was used. The conclusion is drawn, that the treatment of the patients with gallstones in presence of external biliary fistulas should start from conservative methods.