A Rare Gastric Outlet Anomaly: Pyloric Ostium on Incissura Angularis

Abstract

Congenital gastric outlet anomalies are rarely seen defects resulting from early embryologic development of foregut. We report a case of congenital pyloric outlet anomaly in a 60-year-old man with mild postprandial epigastric discomfort of approximately 3 months' duration. Endoscopic examination of the stomach showed a pyloric ostium on incissura angularis connecting the stomach to the duodenum. Usual site of pylorus at the end of antrum was closed like a sac. No signs of acute or chronic peptic ulcer were noted. A biopsy was taken from the region showed normal mucosal layers with a mild gastritis. There was no history of surgery, ulcer disease, or use of any medication. The case was considered to be congenital in origin and was successfully treated conservatively with proton-pump inhibitors and gastrokinetics.

Congenital gastric ectopic pylorus: a rare gastric malformation

“…Congenital gastric ectopic pylorus is an extremely rare congenital gastric abnormality, which was first reported and coined by Yu ZL et al [1] in 1983. Uraz S et al [2] published the first English literature in 2007. This disease occurs more frequently in the 6th and 7th decade of life, with a male predominance (8:1).…”