2021 Volume 63 Issue 10 Pages 2214-2220
Self-expandable metallic stents (SEMS) are used as a bridge to surgery or palliative treatment in patients with colorectal cancer accompanied by bowel obstruction. Perforation and stent migration are known SEMS-induced complications; reportedly, the rate of stent migration is approximately 3％-10％. A 78-year-old man was referred to our hospital with a complaint of abdominal distention and pain. He was diagnosed with bowel obstruction secondary to sigmoid colon cancer. He refused radical surgery and wished to undergo palliative SEMS placement. The SEMS that was initially placed migrated to the oral aspect of the tumor; therefore, we immediately inserted another SEMS, which was correctly positioned. After expansion of the second SEMS, we attempted endoscopic removal of the initially placed stent that had migrated to the oral aspect of the tumor. Following careful endoscopic balloon dilation of the second SEMS, the endoscope with the sliding overtube was passed through the second SEMS, and using a snare, the migrated SEMS was captured and restored into the sliding overtube and was safely removed.
Endoscopic removal using a sliding overtube is a useful option in cases of SEMS migration.
