| Tumor | No. | % | Complete | Subtotal | Biopsy |
| Meningioma | 15 | 37.5 | 11 (73.3) | 3 (20) | 1 (6.6) |
| Ependymoma | 1 | 2.5 | 0 | 1 (100) | 0 |
| Astrocytoma | 2 | 5 | 1 (50) | 1 (50) | 0 |
| Hemangioma | 1 | 2.5 | 1 (100) | 0 | 0 |
| Metastasis | 5 | 12.5 | 4 (80) | 1 (20) | 0 |
| Schwannoma | 10 | 25 | 7 (70) | 3 (30) | 0 |
| Sarcoma | 2 | 5 | 2 (100) | 0 | 0 |
| Nerveshealt tumor | 2 | 5 | 0 | 2 (100) | 0 |
| Osteoma | 1 | 2.5 | 1 (100) | 0 | 0 |
| Paraganglioma | 1 | 2.5 | 0 | 1 (100) | 0 |