Familial scaphocephaly syndrome, McGillivray type is a rare newly described craniosynostosis syndrome characterized by scaphocephaly, macrocephaly, severe maxillary retrusion, and mild intellectual disability. The disease is Monarch Disease Ontology term MONDO_0012307 (familial scaphocephaly syndrome, McGillivray type). Also known as: scaphocephaly-macrocephaly-maxillary retrusion-intellectual disability syndrome.