Congenital Diaphragmatic Hernia vs. Pierre Robin Syndrome
Left picture: The diagnosis is an RDS due to a congenital diaphragmatic hernia on the left side. The RDS is caused by a compression of the left and the right lung by intestinal loops which are herniated in the left hemithorax. Right picture: In this case the cause of the RDS is a Pierre Robin syndrome. Notice the retrodisplacement of the lower jaw (mandibular retrognathism), and the closed mouth.
Both neonates exhibit signs of an RDS as striking posture and subcostal retractions. Left picture: In this newborn a large chest is obvious in relation to a small and collapsed belly; the left hemithorax is less bulky than the right one. Right picture: Both cavities of the trunc are even in size, and the upper belly is rounded.