Table 1. Summary of characteristics in 48 patients.
| Parameter | No. of patients (%) | |
|---|---|---|
| Sex | ||
| Male | 30 (62.5) | |
| Female | 18 (37.5) | |
| Age | ||
| <57 yrs | 20 (41.7) | |
| ≥57 yrs | 28 (58.3) | |
| Location | ||
| Convexity | 35 (72.9) | |
| Deep or skull base | 13 (27.1) | |
| Tumor size | ||
| <45 mm | 19 (39.6) | |
| ≥45 mm | 29 (60.4) | |
| Peritumoral edema | ||
| None or mild | 18 (37.5) | |
| Moderate to severe | 30 (62.5) | |
| Tumor shape | ||
| Round | 17 (35.4) | |
| Mushroom | 31 (64.6) | |
| Simpson grade | ||
| 1 | 20 (41.7) | |
| 2 | 11 (22.9) | |
| 3 | 8 (16.7) | |
| 4 | 8 (16.7) | |
| 5 | 1 (2) | |
| Subtype of pathology | ||
| Grade 3, anaplastic | 46 (95.9) | |
| Grade 3, rhabdoid | 2 (4.1) | |
| Grade 3, papillary | 0 | |
| Dichotomized Ki-67 index | ||
| Ki-67 <20% | 21 (43.8) | |
| Ki-67 ≥20% | 27 (56.2) | |
| Diagnosis type | ||
| Primary | 28 (58.3) | |
| Secondary (malignant transformation) | 20 (41.7) | |
| Adjuvant radiotherapy | ||
| No | 16 (33.3) | |
| Yes | 32 (66.7) | |