Autoimmune Gastritis

 Antral sparing / Body involvement:

- similar prevalence in all races

- F (3): > M (1)

- Anti-parietal cell Ab (80% sensitive, low specificity), Anti-IF antibody (low Sen, high Spec), Gastrin levels (expected to be high) can be requested to corroborate diagnosis

- 1/3rd patients with autoimmune thyroiditis, and 10% patients with DM-1 have it

- Rindi type 1 NET / risk of Gastric Ca due to atrophy ->IM pathway


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