Poststroke psychosis in an 8-year-old child with moyamoya disease.

Psychiatric illnesses following cerebrovascular accidents has been a popular area of research in recent times. Though poststroke anxiety and mood disorders including depression have been reported often, reports of poststroke psychosis have been considerably rarer. This case report documents an even rarer occurrence of a psychotic disorder in an 8-year-old child with moyamoya disease following a cerebrovascular accident. The child was managed with low-dose atypical antipsychotic, risperidone and the psychotic symptoms eventually were under control around 3 weeks following the initiation of psychotropic medication.