Table 1 Clinical data of patients with intraventricular meningioma (n = 25)
clinical data | n = 25 | [%] |
|---|---|---|
Sex | [n] | Â |
 Male | 8 | 32 |
 Female | 17 | 68 |
Age | [years] | Â |
 Mean | 48 |  |
 Median | 54 |  |
 Range | 14–75 | |
WHO Grade | [n] | Â |
 WHO°I | 22 | 88 |
 WHO°II | 3 | 12 |
Histological Subtype | [n] | Â |
 Fibroblastic | 7 | 28 |
 Transitional | 12 | 48 |
 Atypical | 3 | 12 |
 Mixed/Unknown | 3 | 12 |
Location | [n] | Â |
 Trigonal left | 13 | 52 |
 Trigonal right | 7 | 28 |
 Third ventricle | 4 | 16 |
 Fourth ventricle | 1 | 4 |
Tumor recurrence | [n] | Â |
 Recurrence | 5 |  |
Extent of Resection | [n] | Â |
 GTR (Simpson °I-°III) | 23 | 92 |
 STR (Simpson °IV-°V) | 1 | 4 |
 Unknown | 1 | 4 |
Postoperative treatment | [n] | Â |
 Radiotherapy | 2 |  |
 Chemotherapy | 0 |  |
Pre-operative tumor volume | [cm3] | Â |
 Median size | 36.7 |  |
 Mean Size | 43.0 |  |
 Range | 0.8–134.6 | |
Follow-up | [months] | |
 Median | 13 | |
 Mean | 50 | |
 Range | 0.7–399 | |
Progression free survival | ||
 At 5 years | 86% |  |
 Median [months] | 79 (2–319) | |