Table 1 Criteria for evaluating pathology (Fig. 6)
Criteria\Score | 0 | 1 | 2 | 3 |
|---|---|---|---|---|
Epithelial regeneration | Complete | Slight injury | Surface not intact | No tissue repair |
Goblet cell depletion | >50/HPF | 25–50/HPF | 10–25/HPF | <10/HPF |
Epithelial hyperplasia | None | 1–50% | 51–100% | >100% |
Atrophy/Crypt loss | Normal crypt | Mild | Moderate | Severe |
Crypt damage | Intact | Basal 1/3 | Basal 2/3 | Entire loss |
Ulceration/erosion | None | Focal, lamina propria | Muscularis propria | Full thickness |
Edema | None | Mild | Moderate | Severe |
