Ck Syndrome, also known as x-linked intellectual disability-microcephaly-cortical malformation-thin habitus syndrome, is related to congenital hemidysplasia with ichthyosiform erythroderma and limb defects and kaposi sarcoma, and has symptoms including difficulty sleeping An important gene associated with Ck Syndrome is NSDHL (NAD(P) Dependent Steroid Dehydrogenase-Like), and among its related pathways/superpathways are Metabolism and Metabolism of steroids. Affiliated tissues include cortex and bone, and related phenotypes are intellectual disability and seizure