Food impaction in a duodenal diverticulum as an unusual cause of biliary obstruction: case reports and review of the literature.

We present two patients with upper abdominal complaints and symptoms of biliary obstruction. Endoscopic retrograde cholangiopancreatography showed that the common bile duct was obstructed by a juxtapapillary duodenal diverticulum filled with a food bezoar. There were no gallstones or other potential causes of obstruction. The bile flow was restored and symptoms disappeared after rinsing the diverticulum. Eventually, both of the patients were treated surgically because of recurrent symptoms.