Heart defect - round face - congenital developmental delay ICD10:Q87.8 Sonoda syndrome Heart defect – round face – congenital developmental delay is very rare syndrome described in three sibs of one Japanese family and characterized by congenital heart disease, round face with depressed nasal bridge, small mouth, short stature, and relatively dark skin and typical dermatoglyphic anomalies, and intellectual deficit. orphanet OMIM:270460 UMLS:C0796162 Rare genetic developmental defect during embryogenesis Rare genetic intellectual disability with developmental anomaly