Eight Patients With Multiple Bilateral Thoracic Anomalies: A New Syndrome or Bilateral Poland's Syndrome?

All patients with Poland's syndrome have unilateral hypoplasia or absence of the greater pectoral muscle as the main feature. Poland's syndrome is routinely described as a unilateral syndrome. Cases of Poland's syndrome are typically sporadic. Our patients had different additional bilateral anomalies. In particular, the main problems our patients had were the position of the shoulders and limited abduction of both upper extremities. In contrast to patients with Poland's syndrome, half of our cases were familial. We consider our patients important examples in that they either present a new syndrome or show that Poland's syndrome can be bilateral.