Endoscopic extraction of proximally migrated biliary stent by intrastent balloon inflation.

Endoscopically placed bile duct stents are commonly used to relieve obstruction in patients with benign or malignant biliary disease. These stents may become dislodged and migrate in about 5-10% of patients. Distally migrated stents can be managed expectantly, allowing the foreign body to pass through the rectum. However, proximal migration of biliary stents usually necessitates endoscopic stent removal. We present a case of a proximally migrated stent that was extracted successfully with intrastent balloon inflation during endoscopic retrograde cholangiopancreatography (ERCP).