Clasping of subscapular artery by radial nerve.

The present study is about an abnormal origin of radial nerve from Posterior cord of brachial plexus .Here radial nerve was arising as two roots from the posterior cord of brachial plexus. One root was passing posterior to the subscapular artery and other root anterior and the artery was situated between the two roots of the radial nerve. Further down both the roots united to form the trunk of the radial nerve.