Microhydranencephaly, X-Linked, also known as lethal intrauterine growth restriction-cortical malformation-congenital contractures syndrome, is related to lethal intrauterine growth restriction-cortical malformation-congenital contract and fetal akinesia syndrome, x-linked. An important gene associated with Microhydranencephaly, X-Linked is GPKOW (G-Patch Domain And KOW Motifs). Affiliated tissues include brain and cerebellum, and related phenotypes are microcephaly and multiple joint contractures