Coexistence of Right Cervical Rib and Left Rudimentary 1st Thoracic Rib

Rib anomalies are rare congenital anomalies that do not usually cause additional symptoms, can be seen together with some other developmental defects, and whose frequency varies according to ethnicity and age in the society. Congenital anomalies of the ribs include short rib, pseudoarthrosis of the first rib, intrathoracic rib, pelvic rib, cervical rib, forked rib, rib fusion, and rib bridging. In this study, the coexistence of the right cervical rib and the left rudimentary 1st thoracic rib was presented in a 56-year-old female case.