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Classifications for risk assessment after curative surgery. Consensus approach published by Fletcher et al in 200223
| Risk group | Maximal tumor diameter | Mitotic count/50 hpf |
|---|---|---|
| Very low risk | <2 cm | <5 |
| Low risk | 2–5 cm | <5 |
| Intermediate risk | <5 cm | 6–10 |
| 5–10 cm | <5 | |
| High risk | 5–10 cm | 6–10 |
| >10 cm | any | |
| any | >10 |
