Bilateral variation in Branching of Axillary Artery.

ABSTRACT

Bilateral variations in the branching pattern of axillary artery were seen in a 78 year male cadaver during routine dissection. On the right side superior thoracic artery was a branch of second part of axillary artery. Additional pectoral branches were seen coming out of the second part on either side. Bilaterally from the second part a common trunk originated which gave rise to lateral thoracic and subscapular artery. On the left side an additional pectoral branch from the common trunk was present. From the third part on either side a muscular branch supplied the coracobrachialis muscle. On the right side from the third part of axillary artery a common trunk started and divided into anterior and posterior circumflex humeral arteries.