Table 2 Gleason classification system
Risk group | Grade group | Gleason score |
|---|---|---|
Low/very low | Grade group 1 | Gleason score ≤ 6 |
Intermediate (favorable/unfavorable) | Grade group 2 | Gleason score 7 (3 + 4) |
Grade group 3 | Gleason score 7 (4 + 3) | |
High/very high | Grade group 4 | Gleason score 8 |
Grade group 5 | Gleason score 9–10 |