X-linked intellectual disability-craniofacioskeletal syndrome is a rare, hereditary, syndromic intellectual disability characterized by craniofacial and skeletal abnormalities in association with mild intellectual disability in females and early postnatal lethality in males. In addition to mild cognitive impairment, females present with microcephaly, short stature, skeletal features and extra temporal lobe gyrus. In males, intrauterine growth impairment, cardiac and urogenital anomalies have been reported. The disease is Monarch Disease Ontology entry MONDO_0010412 (X-linked intellectual disability-craniofacioskeletal syndrome). Also known as: craniofacioskeletal syndrome, X-linked recessive, X-linked dominant.