Features involve mouth (trismus), muscle, and bones (short stature, symphalangy, muscle anomalies,
restricted joint mobility, pseudocamptodactyly). Ptosis, prognathism,
dislocated hip and foot anomalies (metatarsus adductus, down-turning or
hammer toes, talipes equinovarus), and heart malformations (mitral valve
prolapse, aortic root dilatation) may occur. Feeding difficulties are
frequent.