Double Pylorus: Report of a Case With Endoscopic Follow-Up and Review of the Literature.

Double pylorus is a rare endoscopic finding that has been reported in 0.001% to 0.4% of upper gastrointestinal endoscopies and can be either congenital or acquired. Acquired double pylorus is usually an uncommon complication of peptic ulcer that erodes and creates a fistula between the duodenal bulb and the prepyloric antrum. We describe a case of a 67-year-old man who experienced mild epigastric pain and dyspepsia over the last 6 months. The patient periodically took nonsteroidal anti-inflammatory drugs (NSAIDs) due to joint pain. Esophagogastroduodenoscopy revealed gastritis and a double pylorus. An accessory channel connected the lesser curvature of the prepyloric antrum to the duodenal bulb and the endoscope was able to be passed through both of the ducts. The Helicobacter pylori quick test proved positive. Two years later, a follow-up endoscopy showed that fistula fused with normal pylorus and there was a single large opening.