Table 1.
Histopathological classification of 1,846 low-grade epilepsy-associated neuroepithelial tumors obtained from patients undergoing epilepsy surgery [10]
| Tumor diagnosis | No. (%) | Age at seizure onset (yr) | Duration of epilepsy (yr) |
|---|---|---|---|
| GG | 986 (53.6) | 12.1±10.3 | 11.4±10.4 |
| DNT | 565 (30.6) | 14±10.9 | 12±10.7 |
| Pilocytic astrocytoma | 99 (5.4) | 14.1±9.9 | 12.3 ±11.4 |
| PXA | 43 (2.3) | 17.0±12.4 | 12.8±12.1 |
| Isomorphic astrocytoma | 17 (0.9) | 16.0±14.3 | 11.4±10.5 |
| Gangliocytoma | 16 (0.9) | 12.0±7.0 | 17.1±12.4 |
| Angiocentric glioma | 12 (0.7) | 7.7±4.8 | 6.9±6.0 |
| Low-grade tumor, not specified | 108 (5.9) | 14.6±13.2 | 11.5±10.1 |
Values are presented as number (%) or mean±standard devaition.
GG, ganglioglioma; DNT, dysembryoplastic neuroepithelial tumor; PXA, pleomorphic xanthoastrocytoma.