Approximately 10% of children diagnosed with XYY have autism spectrum disorders; thus, XYY children with social deficits should be formally evaluated for autism spectrum disorders because this diagnosis has an impact on treatment and educational recommendations. Parents should also be referred to the ...
The proband is a male infant, the first child of non-consanguineous parents with a healthy 21-year-old mother and 23-year-old father. The mother had a previous miscarriage at 16 weeks of gestation. There was no family history of malformation or mental retardation. The mother had no history...