Acrofrontofacionasal Dysostosis, also known as richieri-costa-colletto syndrome, is related to dysostosis and acrofrontofacionasal dysostosis 2. An important gene associated with Acrofrontofacionasal Dysostosis is NBAS (NBAS Subunit Of NRZ Tethering Complex). Affiliated tissues include bone and skin, and related phenotypes are ptosis and high palate