Intellectual Developmental Disorder, X-Linked, Syndromic, Chudley-Schwartz Type, also known as mental retardation, x-linked, with seizures, hypogammaglobulinemia, and gait disturbance, is related to syndromic x-linked intellectual disability chudley-schwartz type. An important gene associated with Intellectual Developmental Disorder, X-Linked, Syndromic, Chudley-Schwartz Type is MRXSCS (Mental Retardation, X-Linked, Syndromic, Chudley-Schwartz Type). Related phenotypes are peripheral neuropathy and cerebellar atrophy