Schinzel–Giedion syndrome

Also known as Schinzel-Giedion midface-retraction syndrome, SGS, SCHINZEL-GIEDION MIDFACE RETRACTION SYNDROME

Schinzel-Giedion syndrome (SGS) is an ectodermal dysplasia syndrome chiefly characterized by a distinctive facial dysmorphism, hydronephrosis, severe developmental delay, typical skeletal malformations, and genital and cardiac anomalies