| A rare genetic syndromic intellectual disability disorder characterized by moderate to severe intellectual disability and esotropia. Other associated features may include growth failure (underweight, failure to thrive, short stature), microcephaly, tone abnormalities (hypotonia, spasticity), epilepsy, behavioral problems (hyperactivity, aggressiveness), and/or abnormal brain morphology, including arachnoid cyst, cerebral atrophy, mild ventriculomegaly, and abnormal central nervous system myelination or corpus callosum agenesis. There is evidence the disease is caused by homozygous mutation in the ADAT3 gene on chromosome 19p13. |
