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| Code | Description |
|---|---|
| L | LG: Low grade (≤20 mitoses per 50 HPF) |
| H | HG: High grade (>20 mitosis per 50 HPF) |
| M | TP53 or CTNNB Mutation |
| A | Well differentiated |
| B | Moderately differentiated |
| C | Poorly differentiated |
| D | Undifferentiated, anaplastic |
| 9 | Grade cannot be assessed (GX); Unknown |
