[Interventional radiology of benign bile duct diseases]

The authors describe percutaneous interventional procedure for bile duct benign disease from our own experiences and review of the literatures. Percutaneous dilatation of bile duct stricture is widely employed but is associated with 20-30% recurrence rate. It may be the limitation of present procedure and controversy still exists about long-term post dilatation stent. Self-expandable stainless steel stent have potential advantage and it's future development is expected. Percutaneous removal of common bile duct from percutaneously placed biliary drainage is not routine procedure. Endoscopic sphincterectomy is preferred as initial non-surgical treatment. But recent technological improvement makes this technique safe and simple. Balloon dilatation of Ampullar of Fater and extraction of stone into the duodenum is a effective alternative to endoscopic sphincterectomy. Percutaneous removal of multiple intrahepatic stones with choledochoscopic guidance is well accepted method. Adequate selection of access route and balloon dilatation of multiple stenosis are essential for a success. Extra-corporal shock wave lithotripsy is one adjunct in difficult cases.