[Occurrence of anomalies of the central nervous system in handicapped children].

We surveyed anomalies of the central nervous system using cranial CT scan in handicapped children who were institutionalized or staying at their homes. At the institutions for severely retarded children, fourteen cases were found and the rate was 6.1%. All of them were very severely retarded. At the institution for physically handicapped children, 12 cases including 10 cases of hydrocephalus were found and the rate was 9.3%. Most of them could take care of themselves. Nineteen cases were found among children staying at their homes and the rate was 9.4%. Most of them were very severely retarded. We conclude that the anomalies of the central nervous system play an important role in the pathogenesis of handicapped children, especially severely retarded children, and that the burden derives from them is a big problem in our daily clinic and special education.