Gastric heterotopia together with intestinal metaplasia in the gallbladder: case report and review of literature.

Heterotopic gastric mucosa in the gallbladder is extremely unusual. In this study, we aimed to report a case of gastric heterotopia together with intestinal metaplasia in the gallbladder of a 16-year-old male patient who experienced a sudden onset of epigastric pain with nausea. He was admitted to the hospital with a prediagnosis of mild degree obstructive jaundice. Cholecystectomy and hepaticoduodenostomy were carried out. In the microscopical examination of the gallbladder, an antral and pyloric type gastric mucosa together with intestinal metaplasia were clearly evident in the gallbladder submucosa, and the adjacent gallbladder mucosa showed typical features of chronic cholecystitis.