Bicipital Ribs- A Report of Four Cases.

ABSTRACT

The Thoracic outlet is bounded by the first thoracic vertebra posteriorly superior border of manubrium sternum anteriorly, and the first rib and costal cartilage laterally. Thoracic outlet syndrome is a common term for a number of disorders producing neurovascular compression over this area. In the collection of bones in the Institute of Anatomy, Madras Medical College. Bicipital ribs i.e., fused first and second ribs were found which is one of the important bony factor leading to thoracic outlet syndrome. The present report will be useful to clinicians while dealing with thoracic outlet syndrome.