Demographic data and conventional MR imaging characteristics of BRAF p. V600E-mutant and BRAF p. V600E wild-type APXA
| BRAF p. V600E-Mutant APXA | BRAF p. V600E Wild-Type APXA | P Value | |
|---|---|---|---|
| Clinical data | |||
| Male sex (No.) (%) | 3 (60%) | 3 (37.5%) | .413 |
| Mean age (yr) | 33 (SD, 13) | 43 (SD, 6) | .284 |
| Presenting symptoms (No.) | .850 | ||
| Seizures | 3 | 6 | |
| Headache or increased ICP | 1 | 1 | |
| Neurologic deficit | 1 | 1 | |
| Location (No.) | .276 | ||
| Frontal lobe | 0 | 3 | |
| Temporal lobe | 2 | 3 | |
| Occipital lobe | 1 | 0 | |
| Parietal lobe | 2 | 1 | |
| Insula | 0 | 1 | |
| Superficial location (No.) (%) | 4 (80.0%) | 7 (87.5%) | .641 |
| Conventional MR imaging | |||
| Mean size (cm) | 3.2 (SD, 0.5) | 3.3 (SD, 0.7) | .943 |
| Presence of cystic degeneration (No.) (%) | 3 (60%) | 6 (75%) | .343 |
| Peritumoral edema (mean) (cm) | 1.8 (SD, 0.4) | 2.4 (SD, 0.9) | .354 |
| Heterogeneous enhancement (No.) (%) | 5 (100%) | 6 (75%) | .359 |
| Leptomeningeal contact (No.) (%) | 4 (80%) | 7 (87.5%) | .641 |
Note:— ICP indicates intracranial pressure.