Cognition in cerebral gigantism: are the estimates of mental retardation too high?

The psychological findings on 10 children with cerebral gigantism are reviewed. Infants with cerebral gigantism showed a consistent pattern of psychomotor delay. Preschool age children demonstrated signs of a primary language disorder, and school-age patients had learning disabilities. The incidence of mental retardation was significantly lower than previously reported in the literature. The possibility that some children with cerebral gigantism can be easily misdiagnosed as mentally retarded is discussed.