| Tumor |
Number of operation |
Surgical death |
| Supratentorial high-grade gliomas |
4235 |
38(0.9%) |
| Supratentorial low-grade glioma |
1738 |
2(0.1%) |
| Supratentorial meningioma |
4397 |
15(0.3%) |
| Infratentorial meningioma |
838 |
7(0.8%) |
| Supra- and Infra-tentorial meningioma |
295 |
1(0.3%9 |
| Skull base meningioma |
1313 |
15(1.1%) |
| Pituitary adenoma by craniotomy |
501 |
6(1.2%) |
| Pituitary adenoma by transsphenoidal route |
4752 |
7(0.1%) |
| Cerebellar medulloblastoma |
299 |
0(0%) |
| 4th ventricle ependymoma |
167 |
4(2.4%) |
| Acoustic Schwannoma |
2154 |
6(0.3%) |
| Craniopharyngioma by craniotomy by craniotomy |
748 |
2(0.3%) |
| Craniopharyngioma by transsphenoidal route |
133 |
0(0%) |
| Pineal tumors |
357 |
3(0.8%) |
| Metastatic brain tumors |
3543 |
25(0.7%) |
