Derived Grade
NAACCR Item
NAACCR #1975| Code | Description |
|---|---|
| 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 |