ABSTRACT
Variations are commonly observed and being reported in the formation of lateral cord of brachial plexus and in the communicationof branches of lateral cord of brachial plexus, but formation of median nerve by lateral root of median nerve from lateral cord andmedial root of median nerve from medial cord at a substantially low level is quite unusual and the case reports regarding piercingof the coracobrachialis by lateral cord of brachial plexus are infrequent. The present case report describes an unusual unilateralcourse of lateral cord piercing the coracobrachialis and ensuing path followed by its various branches as well as unusuallylow-level formation of median nerve from lateral and medial roots coming from the lateral and medial cord of brachial plexus,respectively. This was witnessed in the infraclavicular part of the brachial plexus during the routine gross anatomy dissectionof the left upper extremity in a 35-year-old Indian male cadaver. Since axilla and upper half of the arm are challenging areasfor surgical procedures, so the unusual variations being reported in this case may help the surgeons of different specialties inexploration of neuronal tumor, shoulder reconstructive surgery shoulder arthroscopy, and using the coracobrachialis flap fordifferent surgical purposes.