Malignancy risk | Tumor size (cm) | Mitotic index (per 50 HPF) | Primary tumor site |
Very low | ≤2 cm | ≤5 | Any |
low | >2 - 5 cm | ≤5 | Any |
Intermideate | ≤5 cm | 6 - 10 | Gastric |
| >5 - 10 cm | ≤5 | Gastric |
High | Any | Any | Tumor rupture |
| >10 cm | Any | Any |
| Any | >10 | Any |
| >5 cm | >5 | Any |
| ≤5 cm | >5 | Non gastric |
| >5 - 10 cm | ≤5 | Non gastric |