Neurodevelopmental Disorder with or Without Autistic Features and/or Structural Brain Abnormalities, also known as nedasb, is related to autism and congenital hemidysplasia with ichthyosiform erythroderma and limb defects. An important gene associated with Neurodevelopmental Disorder with or Without Autistic Features and/or Structural Brain Abnormalities is NOVA2 (NOVA Alternative Splicing Regulator 2). Affiliated tissues include brain and eye, and related phenotypes are intellectual disability and delayed speech and language development