| 1 |
G1: Low combined histologic grade (favorable), SBR score of 3-5 points
Stated as Nottingham/Scarff Bloom-Richardson Grade 1 |
| 2 |
G2: Intermediate combined histologic grade (moderately favorable); SBR score of 6-7 points
Stated as Nottingham/Scarff Bloom-Richardson Grade 2 |
| 3 |
G3: High combined histologic grade (unfavorable); SBR score of 8-9 points
Stated as Nottingham/Scarff Bloom-Richardson Grade 3 |
| L |
Nuclear Grade I (Low) (in situ only) |
| M |
Nuclear Grade II (interMediate) (in situ only) |
| H |
Nuclear Grade III (High) (in situ only) |
| A |
Well differentiated |
| B |
Moderately differentiated |
| C |
Poorly differentiated |
| D |
Undifferentiated, anaplastic |
| 9 |
Grade cannot be assessed (GX); Unknown |
