[Family paracentric inversion of the short arm of chromosome X (Xp21.2p11.23) and connection with autism spectrum disorders].

Introduction: Autism spectrum disorders (ASDs) are a group of complex pervasive developmental disorders characterized by impairments in communication, social interaction and behavior. In most cases autism is caused by a combination of genetic factors and environmental risk factors. In 10% to 20% of cases it has been shown that the cause of ASD is genetic.