Table 1.
Tumor size | Mitotic count | |
---|---|---|
Very low risk | < 2 cm | <5/50 HPFs |
Low risk | 2–5 cm | <5/50 HPFs |
Intermediate risk | < 5 cm | 6–10/50 HPFs |
5–10 cm | <5/50 HPFs | |
High risk | > 5 cm | >5/50 HPFs |
>10 cm | any mitotic rate | |
any size | >10/50 HPFs |
Data according to Fletcher et al.13