Ectopic Ampulla of Vater in the Pyloric Channel as a Rare Cause of Gastric Outlet Obstruction and Choledocholithiasis: A Case Report

Abstract

Rare anatomical anomalies of the ampulla of Vater can be associated with significant clinical complications, including gastric outlet obstruction and choledocholithiasis. This article reports a rare case of an ectopic ampulla of Vater located in the pyloric channel, with notable clinical consequences, and reviews similar findings in the literature.
A 75-year-old man presented with epigastric pain, nausea, and recurrent vomiting. Endoscopic and imaging findings revealed that the ampulla of Vater was ectopically located in the pyloric region. The patient subsequently underwent successful endoscopic intervention and recovered.
Ectopic ampulla of Vater (ectopic papilla of Vater) is a rare anomaly that can lead to symptoms such as pyloric obstruction, cholangitis, and choledocholithiasis. Accurate identification through advanced imaging and endoscopic techniques is crucial. A literature review revealed similar cases of this anomaly, often associated with delayed diagnosis and secondary complications.

Although the ectopic ampulla of Vater is rare, it should be considered in cases of unexplained biliary disorders. Timely diagnosis and appropriate treatment can prevent severe complications.