| Variable | N (%) |
|---|---|
| Gender | |
| Male | 16 (25.0) |
| Female | 48 (75.0) |
| Age, ys | |
| Range | 20–68 |
| Mean ± SD | 47.0 ± 11.2 |
| Duration of symptom, months | |
| Range | 0.25–180 |
| Mean ± SD | 32 ± 30 |
| Tumor size, mm | |
| 10–24 | 4 (6.2) |
| 25–44 | 28 (43.8) |
| ≥45 | 32 (50.0) |
| Tumor subtype | |
| Clivus | 28 (43.8) |
| Petroclival | 13 (20.3) |
| Sphenopetroclival | 23 (35.9) |
| Involved structure | |
| Brainstem | 64 (100) |
| Cavernous sinus | 17 (26.6) |
| Meckel’s cave | 32 (50.0) |
| Supratentorial ventricular system | 18 (28.1) |