Table 2 Age-related frequency, sex ratio, histological, and topographical distribution of the 5 most common intracranial tumors [n, n (%)]. (M male, F female, IT infratentorial, ST supratentorial)
Histological types | Frequency | 0–3 years | 4–6 years | 7–9 years | 10–12 years | 13–15 years | Ratios | |
|---|---|---|---|---|---|---|---|---|
M:F | IT:ST | |||||||
Craniopharyngioma | 472 (15.4) | 70 (2.3) | 149 (4.9) | 109 (3.6) | 88 (2.9) | 56 (1.8) | 1.37: 1 | - |
Medulloblastoma | 437 (14.3) | 57 (1.9) | 136 (4.4) | 137 (4.5) | 73 (2.4) | 34 (1.1) | 1.89: 1 | - |
Pilocytic astrocytoma | 362 (11.8) | 77 (2.5) | 110 (3.6) | 75 (2.4) | 58 (1.9) | 42 (1.4) | 1.14: 1 | 1.59: 1 |
Diffuse astrocytoma | 302 (9.8) | 72 (2.3) | 81 (2.6) | 59 (1.9) | 54 (1.8) | 36 (1.2) | 1.32: 1 | 1.56: 1 |
Anaplastic ependymoma | 148 (4.8) | 45 (1.5) | 54 (1.8) | 29 (0.9) | 12 (0.4) | 8 (0.3) | 2.08: 1 | 1.60: 1 |
Intracranial tumors | 3066 (100) | 556 (18.1) | 818 (26.7) | 687 (22.4) | 553 (18.0) | 452 (14.8) | 1.47: 1 | 0.73: 1 |