Percutaneous removal of residual biliary stone was performed through T-tube tract in 10 patients at theDepartement of Radiology, College of Medicine, Seoul National University from November, 1982 to May, 1983. Forpercutaneous biliary stone removal is easy to perform, high in success rate, applicable in outpatient andnegligible in complication, active clinical application of the percutaneous removal is recommended as the primarymethod for residual stone instread of surgical re-operation.