The patient underwent duodenal and biliary stenting for malignant obstruction. Twenty-third days after duodenal stent placement, he developed nausea and vomiting. CT revealed stent fracture with associated gastric outlet obstruction. Endoscopy confirmed that a fractured fragment of the duodenal stent was obstructing the pylorus, which was successfully removed endoscopically. The remaining stent was patent, and no additional intervention was required. Although duodenal stent fracture is a rare complication, it can be clinically significant. In this case, mechanical fatigue from peristalsis near the pylorus was considered a possible cause. This case highlights the importance of being aware of potential stent fracture and the need for careful postoperative monitoring following enteral stent placement.
