Tumor location
| No. | (%) | |
|---|---|---|
| Supratentorial (NOS) | 64 | 38 |
| Infratentorial (not brain stem) | 43 | 26 |
| Brain stem | 22 | 13 |
| Midbrain/pineal | 13 | 8 |
| Third ventricular/suprasellar | 12 | 7 |
| Deep gray nuclei | 9 | 5 |
| Cervical spine/skull base | 5 | 3 |
Note:—NOS indicates not otherwise specified.