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Characteristics of cases treated with Simpson II, III or IV resection (n = 87).
| Characteristics | Simpson II, III, IV (n = 87) |
|---|---|
| Sagittal tumor location | |
| Cervical (n = 22) | 18 (81%) |
| Thoracic (n = 90) | 69 (77%) |
| Lumbar (n = 4) | 0 (0%) |
| Axial tumor location | |
| Lateral (n = 64) | 49 (77%) |
| Ventral (n = 34) | 27 (79%) |
| Dorsal (n = 15) | 8 (53%) |
| Dumbbell (n = 3) | 3 (100%) |
| WHO classification | |
| Grade I (n = 113) | 84 (74%) |
| Grade II (n = 3) | 3 (100%) |
