CONCLUSIONS: Although stereotypical symptoms were present in all subjects, there was an apparent age-related reduction in movement intensity. Stereotypies in females were associated with greater impairment in self-esteem, family life, school, and social acceptance. The presence of mild, early neurodevelopmental delays, and/or later appearing neuropsychiatric comorbidities is common among children with pCMS and should not be considered exclusionary for the diagnosis.
