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Ten children at the age of 1-16 with various types of cortical dysplasias are demonstrated by means of computerized tomography. Clinical features of focal subcortical mass of heterotopic gray matter (focal pachygyria) are contralateral partial seizures (n = 5). Pachygyria commonly is associated with severe psychomotor retardation and epilepsy (n = 3). In two cases nodular heterotopias protruding the ventricular walls are accompanied by epilepsy only.

31 out of 128 infants with abnormal neurological signs show areas of decreased radiodensity of computed tomography (CT) over the cerebral hemispheres, primarily frontal. It is emphasized, that the diagnosis of subdural effusions is permitted in cases with decreased density over the frontal lobes and hardly visible cerebral sulci as well as wedge-shaped widening of the interhemispheric fissure. But in cases with decreased density over the frontal regions and prominent cerebral sulci a subdural effusion cannot be excluded. In association with signs of increased intracranial pressure these CT findings are yet indicative of subdural effusion. Are there to delimitate two spaces of different density between skull and cortex the diagnosis of subdural effusion is certain already by means of CT-morphological criteria. The therapeutic regimen is dependent upon the clinical symptoms.