diprosopus https://github.com/monarch-initiative/mondo/issues/6876 https://www.malacards.org/card/diprosopus SCTID:62192003 Diprosopia GARD:0001876 MONDO:0015672 UMLS:C0266731 Orphanet:1681 MEDGEN:540123 craniofacial duplication Diprosopus is a rare, life-threatening developmental defect during embryogenesis, and a subtype of conjoined twins, characterized by partial or complete duplication of the facial structures on a single head, neck, trunk and body. It may be associated with congenital anomalies involving the central nervous, cardiovascular, gastrointestinal and respiratory systems. Cleft lip and palate have been reported in rare cases. disorder of development or morphogenesis