Abstract
Three cases of bile duct tone, including one of intrahepatic bile duct stone and two of choledochal residual stone, were treated with laer irradiation under fiberscope, uing Molectron Nd-YAG Laer Model 800. The laser regimen was carried out by inserting choledochofiberscope through postoperative T-tube fistula or PTCD fitula. In all three cases the bile duct stones were successfully removed.
This laser technique is effective for incarcerated stones or those having diameters lager than that of fistula.