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| Risk category | Tumor size (cm) | Mitosis/50 HPF | Primary tumor site |
|---|---|---|---|
| Very low | ≤2 | ≤5 | Any |
| Low | 2–5 | ≤5 | Any |
| Intermediate | ≤5 | 6–10 | Gastric |
| 5–10 | ≤5 | Gastric | |
| High | Any | Any | Tumor rupture |
| >10 | Any | Any | |
| Any | >10 | Any | |
| >5 | >5 | Any | |
| ≤5 | >5 | Non gastric | |
| >5–10 | ≤5 | Non gastric |
HPF, high power field.
