Duodenal diverticula demonstrated by endoscopic retrograde cholangio-pancreatography (ERCP)--their relationship to biliary calculi and gastrooesophageal reflux.

In 24 patients with duodenal diverticula, demonstrated by ERCP, food-stimulated gastrooesophageal reflux was demonstrated in 33% of the patients and biliary tract calculi in 81%. This is in contrast to a previous study in patients with duodenal diverticula demonstrated by barium examination where gastroesophageal reflux occurred in 81% and biliary tract calculi in 38% of the patients. Differences in clinical selection are believed to be the underlying cause to these varying results.