Van Esch-O'driscoll Syndrome, also known as x-linked intellectual disability, van esch type, is related to hypogonadotropic hypogonadism 7 with or without anosmia and syndromic x-linked intellectual disability. An important gene associated with Van Esch-O'driscoll Syndrome is POLA1 (DNA Polymerase Alpha 1, Catalytic Subunit), and among its related pathways/superpathways are Cell Cycle, Mitotic and Assembly of the pre-replicative complex. Affiliated tissues include testis and eye, and related phenotypes are failure to thrive and delayed skeletal maturation