Abstract
Epilepsy affects up to 1 in 1,000 children annually. While it is increasingly recognized
that forms of epilepsy may have genetic origins, congenital and acquired structural
abnormalities of the brain parenchyma are common causes of seizures. Among the most
difficult etiologies to diagnose are focal cortical dysplasias, which will be discussed
along with their unique imaging features. While magnetic resonance (MR) imaging is
the mainstay of epilepsy imaging, magnetoencephalography (MEG) and positon emission
tomography (PET) have become increasingly recognized as adding value to the presurgical
evaluation of medically refractory epilepsy. More recently, PET/MR hybrid scanning
is gaining popularity.
Keywords
epilepsy - focal cortical dysplasia - imaging - magnetoencephalography - positon emission
tomography - magnetic resonance
