| Characteristic | No. of patients |
|---|---|
| Sex | |
| Male | 6 |
| Female | 11 |
| Age (yr), median (range) | 59 (40~75) |
| Tumor location | |
| Cerebral falx | 5 |
| Cerebellopontine angle | 4 |
| Skull base | 3 |
| Convexity | 2 |
| Sellar region | 2 |
| Parasagittal region | 1 |
| Histology | |
| WHO Grade I | 8 |
| WHO Grade II | 1 |
| Unknown | 8 |
| Tumor volume (mL), median (range) | 6.65 (0.56–40.8) |