Table 2.
Tumor entity, WHO grade and intraventricular location
| Tumor % (N) or mean/median (SD/IR) | N | WHO | Ventricle location | Location within | Approach according to location | ||
|---|---|---|---|---|---|---|---|
| Lateral ventricles | 3rd | 4th | |||||
| Ependymoma | 13 |
II (12) III (1) |
Lateral ventricle 7.7% (1) | Left temporal horn (1) | Frontotemporal (1) | ||
| 4th ventricle 92.3% (12) | Below str. Med 100% (12) | TeloVelar (12) | |||||
| Subependymoma | 21 |
I II (1) |
Lateral ventricle 52.4% (11) |
Left frontal horn 36.4% (4) Right frontal horn 63.6% (7) |
Frontal-Keyhole (10) Parietal craniotomy (1) |
||
| 4th ventricle 47.6% (10) |
Below str. Med. 90.0% (9) Above str. Med. 10.0% (1) |
TeloVelar (10) | |||||
| Central Neurocytoma | 10 | II | Lateral ventricle 90.0% (9) |
Left frontal horn 55.6% (5) Right frontal horn 44.4% (4) |
Frontal-Keyhole (9) | ||
| 3rd ventricle 10.0% (1) | Floor (1) | Infratententorial-supracerebellar (1) | |||||
| GEC | 1 | – | 3rd ventricle 100% (1) | Roof (1) | Frontal-Keyhole (1) | ||
| Total | 45 |
Lateral ventricle 46.7% (21) 3rd ventricle 4.4% (2) 4th ventricle 48.9% (22) |
Frontal-Keyhole 44.4% (20) Others 6.7% (3) TeloVelar 48.9% (22) |
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