“…Even different primary rib anomalies may cause a deformity of the chest wall; however, an attentive clinical examination is sufficient for a differential diagnosis. Sternal defects are also frequent in rare genetic syndromes, such as Noonan syndrome, trisomy 17, and trisomy 18, in which they occur as a large spectrum of anomalies (sternal deformity in a shield chest, short sternum with a cleft, delayed sternal ossification) associated with other musculoskeletal malformations [17] , [19] , [20] ( Table 1 , Table 2 ).…”