Table I.
Demographics of the 72 patients with medulloblastoma.
| Characteristic | n (%) |
|---|---|
| Sex | |
| Male | 50 (69.44) |
| Female | 22 (30.56) |
| Age, years | |
| ≤16 | 55 (76.39) |
| >16 | 17 (23.61) |
| Symptoms | |
| Headache | 57 (79.17) |
| Vomiting | 15 (20.83) |
| Ataxia | 5 (6.94) |
| Dizziness | 8 (11.11) |
| Leg weakness | 2 (2.78) |
| Visual symptoms | 2 (2.78) |
| Tumor maximal diameter, cm | |
| ≤2 | 12 (16.67) |
| >3, ≤5 | 53 (73.61) |
| >5 | 7 (9.72) |
| Tumor location | |
| Hemisphere | 27 (37.50) |
| Vermis | 45 (62.50) |
| Metastases at diagnosis | 23 (31.94) |
| Extent of resection | |
| Gross total | 46 (63.89) |
| Subtotala | 26 (36.11) |
| Recurrence | 53 (73.61) |
| Tumor bed | 19 (26.39) |
| Metastatic | 26 (36.11) |
| Mixed | 8 (11.11) |
| Postoperative treatment | |
| Surgery only | 17 (23.61) |
| Surgery and irradiation | 34 (47.22) |
| Irradiation and chemotherapy | 21 (29.17) |
| Histology | |
| Classical | 51 (70.83) |
| Nodular-desmoplastic | 9 (12.50) |
| Large cell/anaplastic | 12 (16.67) |
| Patient survival | 27 (37.50) |
| Patient mortality | 45 (62.50) |
Extent of resection, gross total resection as no residual tumour
a
Sub-total resection, ≥1.5 cm2 residual tumour; mixed, both in situ recurrence accompanied by distant metastasis.