444 Copyright © 2015 The Korean Society of Radiology Colonic Perforations Caused by Migrated Plastic Biliary

Diverticular disease Endoscopic insertion of plastic endoprostheses has become an integral part of the management of many benign and malignant diseases affecting the hepatobiliary and pancreatic system. Clogging and dislocation into the duodenum are the most frequently described complications following stent placement. Distal migration with or without perforation of the colon is an exceedingly rare phenomenon and the treatment is not well defined, as discussed below. Recently, we were presented with 2 old women with plastic biliary stents (which were endoscopically placed for cholecholithiasis in both cases) that had migrated to their diverticular sigmoid colon, but had different manifestations. The first patient was admitted with the complaint of a relentless pain localized in the lower half of the abdomen: plain film documented stent dislodgement and CT sca