Neuronal Migration Abnormalities Can Still Be Diagnosed by Computed Tomography!

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Abstract
Magnetic resonance imaging is presently the best modality for evaluating gray/white matter anatomy. However, this modality is expensive and not yet readily available in all countries. Most neuronal migration abnormalities can be accurately diagnosed by computed tomography (CT) provided excellent scanning technique is used. Abnormalities of neuronal migration were identified with CT brain scans in 68 children and were categorized as focal heterotopias (11 patients), multifocal heterotopias (19 patients) of diffuse migration disorders (38 patients). The principal indications for imaging were correlated to the radiological features. Neuropathological confirmation of the migration abnormality was obtained in 8 patients. An increased awareness by both clinicians and radiologists together with optimal CT technique are essential for the accurate diagnosis of migration disorders in children.