Abstract
INTRODUCTION: The papilla of Vater is situated in the second part of the duodenum. The current study aims to report a rare occurrence of an ectopic papilla of Vater in the pyloric region presenting with cholangitis. CASE REPORT: A 59-year-old male patient presented with right upper quadrant pain, anorexia, nausea, and jaundice. He was feverish and exhibited tenderness in the right upper quadrant. Endoscopic retrograde cholangiopancreatography revealed an ectopic papilla of Vater on the pyloric canal. A gastroscope was used instead of a duodenoscope for better visibility of the opening, easier cannulation, and a less risky sphincterotomy. He returned one year after his last procedure with no symptoms and no recurrence of acute cholangitis. DISCUSSION: It has been suggested that developmental defects are acquired during embryogenesis. If subdivision happens early in embryogenesis, leaving the pars hepatica above the zone of proliferation that divides the stomach from the duodenum, the pars hepatica will develop into a duct that empties into the pylorus area. CONCLUSION: It is preferable to use a gastroscope rather than a duodenoscope to visualize and manipulate the common bile duct in the case of an ectopic papilla of Vater in the pylorus.