Nager syndrome, also called Nager acrofacial dysostosis (NAFD) is a congenital malformation syndrome characterized by mandibulofacial dystosis (malar hypoplasia, micrognathia, external ear malformations) and variable preaxial limb defects. The disease is Nager acrofacial dysostosis (MONDO_0007943). Also known as: NAFD, Nager Syndrome, Nager acrofacial dysostosis syndrome, Nager syndrome, acrofacial dysostosis 1, Nager type, mandibulofacial dysostosis with preaxial limb anomalies, preaxial acrodysostosis.