A 64-year-old woman had gastric heterotopic of the duodenal bulb without any specific
complaints. The lesion with irregular excrescence was diagnosed by means of target
biopsies through endoscopy, and 3 years later, no noteworthy changes were observed
in the endoscopic findings of the lesion, and it was also proved by an endoscopic
Congo red test that the excrescence had a function of acid output. This is the second
report of congenital heterotopic gastric mucosa of the duodenum which was confirmed
not only by histological, but also functional examination.
Heterotopic gastric mucosa - Duodenal tumor - Duodenal ulcer
