[Abnormalities of the brain in childhood in nuclear magnetic tomography].

25 of about 300 infants and children, who had been examined by magnetic resonance imaging since 1984, had a congenital malformation of the brain. Cystic malformations (e.g. arachnoid cysts) were the most frequent lesion. Other findings were: Arnold-Chiari malformation, septo-optic dysplasia, Dandy-Walker syndrome, agenesis of the corpus callosum, migration disorders. The multiplanar slice orientation and the good tissue contrast in magnetic resonance imaging supplied a clear diagnosis in all cases. Compared with other imaging modalities (CT, ultrasonography) the depiction of the morphology was superior in MR imaging in most cases.