|
| |
Astrocytic Lesions
Grading
Systems
|
WHO Grade |
WHO Designtation |
|
|
Grade I |
Pilocytic Astrocytoma |
|
|
Grade II |
Low-Grade Astrocytoma |
1 of 4 Criteria* |
|
Grade III |
Anaplastic Astrocytoma |
2 of 4 Criteria* |
|
Grade IV |
Glioblastoma Multiforme (GBM or Glioblastoma) |
3 of 4 Criteria* |
| |
|
|
| |
*Criteria |
|
| |
- Nuclear Atypia |
|
| |
- Mitotic Activity |
|
| |
- Endothelial Proliferation |
|
| |
- Necrosis |
|
|
