Perforación diverticular sigmoidea secundaria a la migración de endoprótesis biliar plástica

Resumen

Background: Biliary stents are devices that are used to widen narrowed bile ducts, especially in malignant obstructions, although at present its use in benign biliopancreatic diseases is progressively increasing. Endoscopic placement of biliary stents is a well established procedure that is performed daily. Despite its frequency, has a complication rate of 5-10%, the most common are cholangitis and stent obstruction and there are others more rare and serious like pancreatitis, gastrointestinal bleeding, intestinal perforation and biliary stent migration. Case report: We report a 70-years-old male with a history of plastic biliary stent placement after open cholecystectomy because of choledocholithiasis, who arrived at the Emergency Department with symptoms of intestinal obstruction. After performing imaging studies, there was significant intestinal dilation and a biliary stent in the sigmoid colon. He underwent urgent surgical intervention, having the plastic biliary stent located in a sigmoid diverticulum. We performed removal of the stent and simple suture of the sigmoid diverticular perforation. Conclusion: Sigmoid diverticular perforation secondary to migration of a plastic biliary stent is a rare complication that can occur after placement of a stent in the bile duct. It must be suspected in all acute abdomens accompanied of radiological images demonstrating biliary stent migration because these patients often show atypical symptoms.