Risk category | Tumor size (cm) | Mitotic index (per 50 high power fields) | Primary tumor site |
---|---|---|---|
Very low risk | <2.0 | ≤5 | Any |
Low risk | 2.1 to 5.0 | ≤5 | Any |
Intermediate risk | 2.1 to 5.0 | >5 | Gastric |
<5.0 | 6-10 | Any | |
5.1 to 10.0 | ≤5 | Gastric | |
High risk | Any | Any | Tumor rupture |
>10Â cm | Any | Any | |
Any | >10 | Any | |
>5.0 | >5 | Any | |
2.1 to 5.0 | >5 | Non-gastric | |
5.1 to 10.0 | ≤5 | Non-gastric |