Table 1. Characteristic features of the 90 patients who underwent surgical decompression for meningioma treatment.
| Sex | n (%) |
| Female | 50 (55.5%) |
| Male | 40 (44.5%) |
| WHO grade | n (%) |
| Grade I | 54 (60%) |
| Grade II | 28 (31.1%) |
| Grade III | 8 (8.9%) |
| Tumor localization | n (%) |
| Anterior fossa | 7 (7.7%) |
| Middle fossa | 6 (6.6%) |
| Posterior fossa | 11 (12.2%) |
| Convexity | |
| Frontal | 17 (18.8%) |
| Frontoparietal | 5 (5.5%) |
| Parietal | 15 (16.6%) |
| Temporal | 14 (15.5%) |
| Temporoparietal | 4 (4.4%) |
| Occipital | 2 (2.2%) |
| Parieto-occipital | 5 (5.5%) |
| Parasagittal | 4 (4.4%) |
| Histological subtype | n (%) |
| Angiomatous | 4 (4.4%) |
| Fibrous | 4 (4.4%) |
| Transitional | 6 (6.6%) |
| Psammomatous | 3 (3.3%) |
| Meningothelial | 35 (38.8%) |
| Lymphoplasmacyte-rich | 1 (1.1%) |
| Secretory | 1 (1.1%) |
| Atypical | 24 (26.6%) |
| Chordoid | 2 (2.2%) |
| Anaplastic | 9 (9.9%) |
| Papillary | 1 (1.1%) |
| Tumor size | n (%) |
| <3 cm | 9 (10%) |
| 3–5 cm | 40 (44.4%) |
| >5 cm | 41 (45.6%) |