Status of MR imaging for focal cortical dysplasia

Focal cortical dysplasia(FCD) is characterized by the dyslamination and the presence of abnormal neurons and glia arranged abnormally in focal areas of the cerebral.FCD is a common cause of pharmaco-resistant epilepsy.With the recent progress in magnetic resonance imaging(MRI),FCD are being identified increasingly.MRI can show the topographical characterization of the lesion with respect to its location,size and extension.FCD exhibits a variety of features:local cortical thickening,blurring of the grey-matter to white-matter surface,signal changes in the underlying white matter.The research and current status of MRI on FCD were reviewed in this article.