Table 1.
Clinical and molecular information of cases for the genome-wide methylation analysis
| Total Number of Enrolled Cases, 152 | ||
|---|---|---|
| Location | Hemisphere | 83 |
| Thalamus/hypothalamus | 35 | |
| Cerebellum | 22 | |
| Brainstem/spine | 12 | |
| Pathological diagnosis | Pilocytic/pilomyxoid astrocytoma | 48 |
| Ganglioglioma | 40 | |
| Diffuse astrocytoma | 22 | |
| Pleomorphic xanthoastrocytoma (PXA) | 16 | |
| Other low grade gliomas | 26 | |
| Molecular status | BRAF V600E mutation | 79 |
| BRAF fusions | 39 | |
| FGFR1-TACC1 fusion | 6 | |
| FGFR2 fusions | 4 | |
| MYBL1 amplification | 2 | |
| ALK fusions | 2 | |
| Others | 20 | |
| Observation period, median (range) | 5.4 y (0‒28.0) |