RESUMEN
Introduction: Performing endoscopic retrograde cholangiopancreatography (ERCP) in duodenal switch (DS) patients is challenging given their surgically altered anatomy. There have been very few reported cases of trans enteric rendezvous ERCP to relieve biliary obstruction in DS patients. More specifically, there has not been any reported cases of this procedure being performed in loop DS, also known as SADI (single anastomosis duodeno-ileostomy) or SIPS (stomach intestinal pylorus sparing procedure). Case Description: This case reports describes a 50-year-old male with prior loop DS who presented with gallstone pancreatitis. He underwent a laparoscopic cholecystectomy with positive intraoperative cholangiogram requiring the need for trans enteric rendezvous ERCP. Discussion: Although never reported, trans enteric rendezvous ERCP is a feasible approach in relieving biliary obstruction in patients with loop DS anatomy.