Table 2 PET data in relation to MRI and surgical results
| Â | Initial MRI positive (n = 16) | Initial MRI negative (n = 4) |
|---|---|---|
PET visual analysis | ||
 Focal hypometabolism | 10 | 2 |
 Regional hypometabolism | 5 | 2 |
 No PET abnormality | 1 | 0 |
BOSD location | ||
 Frontal | 9 | 2 |
 Parietal | 4 | 2 |
 Frontotemporal | 1 | 0 |
 Temporoparietal | 1 | 0 |
 Insula | 1 | 0 |
Histopathology | ||
 FCD type IIA | 1 | 1 |
 FCD type IIB | 15 | 2 |
 Negative pathology | 0 | 1 |
Post-surgical outcome | ||
 Seizure free | 13 | 4 |
 Seizure reduction | 1 | 0 |
 Recurrent seizures | 2 | 0 |