Intellectual Developmental Disorder, X-Linked 98, also known as x-linked intellectual disability, cantagrel type, is related to non-syndromic x-linked intellectual disability 98, and has symptoms including muscle spasticity and seizures. An important gene associated with Intellectual Developmental Disorder, X-Linked 98 is NEXMIF (Neurite Extension And Migration Factor). Affiliated tissues include eye and brain, and related phenotypes are intellectual disability and short nose