| Score . | Description . |
|---|---|
| Epithelium | |
| 0 | Normal |
| 1 | Hyperproliferation, irregular crypts, goblet cell loss |
| 2 | Mild to moderate crypt loss (10–50%) |
| 3 | Severe crypt loss (50–90%) |
| 4 | Complete crypt loss, surface epithelium intact |
| 5 | Small to medium-sized ulcer (<10 crypt widths) |
| 6 | Large ulcer (>10 crypt widths) |
| Infiltration with inflammatory cells | |
| Mucosa | |
| 0 | None |
| 1 | Mild infiltration |
| 2 | Moderate infiltration |
| 3 | Severe infiltration |
| Submucosa | |
| 0 | None |
| 1 | Mild to moderate infiltration and/or edema |
| 2 | Severe infiltration |
| Muscularis/serosa | |
| 0 | Not involved |
| 1 | Involved |
| Score . | Description . |
|---|---|
| Epithelium | |
| 0 | Normal |
| 1 | Hyperproliferation, irregular crypts, goblet cell loss |
| 2 | Mild to moderate crypt loss (10–50%) |
| 3 | Severe crypt loss (50–90%) |
| 4 | Complete crypt loss, surface epithelium intact |
| 5 | Small to medium-sized ulcer (<10 crypt widths) |
| 6 | Large ulcer (>10 crypt widths) |
| Infiltration with inflammatory cells | |
| Mucosa | |
| 0 | None |
| 1 | Mild infiltration |
| 2 | Moderate infiltration |
| 3 | Severe infiltration |
| Submucosa | |
| 0 | None |
| 1 | Mild to moderate infiltration and/or edema |
| 2 | Severe infiltration |
| Muscularis/serosa | |
| 0 | Not involved |
| 1 | Involved |
Total scoring range: 0–12.