Necrotizing Gastritis is related to peritonitis and neutropenia. An important gene associated with Necrotizing Gastritis is ENC1 (Ectodermal-Neural Cortex 1), and among its related pathways/superpathways are CD28 co-stimulation and Phosphorylation of CD3 and TCR zeta chains. Affiliated tissues include colon and heart, and related phenotypes are homeostasis/metabolism and immune system