Causes
Recent research has shown that AMAG is a result of the immune system attacking the parietal cells, the attack is being triggered by H. pylori through a mechanism called molecular mimicry.
Environmental Metaplastic Atrophic Gastritis (EMAG) is due to environmental factors, such as diet and H. pylori infection. EMAG is typically confined to the body of the stomach. Patients with EMAG are also at increased risk of gastric carcinoma.
Read more about this topic: Atrophic Gastritis