Review of autoimmune metaplastic atrophic gastritis

Autoimmune metaplastic atrophic gastritis (AMAG) is most commonly associated with pernicious anemia. It is the immune-mediated destruction of gastric parietal cells that leads to long-term hematologic consequences. Pernicious anemia is a late manifestation of AMAG. The endoscopic and histologic findings of complete atrophy of the stomach body and fundus are well recognized in standard clinical practice; however, the changes in early AMAG with...