Table 1 Histological parameters used to establish a scoring system based on the Updated Sydney System and De Witte et al. and Gastritis overall scoring system [13]
Parameter | Scoring | |
|---|---|---|
Inflammatory cells (lymphocytes, plasm cells, neutrophils, eosinophils) | Absent | 0 |
Mild infiltration (<5 cells per HPF) | 1 | |
Moderate infiltration (≥5–20 cells per HPF) | 2 | |
Severe infiltration (≥20 cells per HPF) | 3 | |
Lymphoid follicles in the superficial and deep mucosa | No aggregates of lymphoid cells | 0 |
Presence of one aggregate of lymphoid cells with minimal organization into a follicular structure | 1 | |
Presence of at least one large follicle measuring at least 300 µm in diameter and/or more than one small aggregate of lymphoid cells per histological section | 2 | |
At least two large lymphoid follicles measuring at least 300 µm in diameter per histological section and/or deformation of the mucosal caused by large lymphoid follicles | 3 | |
Gastritis overall scoring system | ||
Score | ||
0 | Normal | |
1 | Mild gastritis | |
2 | Moderate gastritis | |
≥ 3 | Severe gastritis | |