Lymphocytic Gastritis
Differential Diagnosis
| Extranodal Marginal Zone B Cell Lymphoma | Lymphocytic Gastritis |
| Monomorphic infiltrate in lamina propria | Mixed infiltrate in lamina propria |
| B lineage | Intraepithelial lymphocytes are T lineage |
| Lymphoepithelial lesions may be large | Lymphoepithelial lesions, if present, are small, ≤3 lymphocytes |
