Abstract

Wide range of variations are observed concerned to formation of distribution of brachial plexus, but rarely variation in formation of cords are observed. One such observation surfaced during routine undergraduate dissection at JSS Ayurveda Medical College, Mysore. Brachial plexus are the result of branching from cones of amalgamated nerves, in some cases due to improper bifurcation results in absence of medial cord and making it appear as only posterior and lateral cord are present. The main branches like ulnar, radial, median nerve appear to be arising from only these two cords. As axilla is common approach to various surgical procedures, this region becomes point of interest for anaesthesiologist, surgeon, plastic surgeon and orthopaedic surgeons. As smallest of variations during surgical procedures may mislead and cause major complications during and after surgery.

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