This was witnessed in the infraclavicular part of the brachial plexus during the routine gross anatomy dissection of the left upper extremity in a 35-year-old Indian male cadaver. The present case report describes an unusual unilateral course of lateral cord piercing the coracobrachialis and ensuing path followed by its various branches as well as unusually low-level formation of median nerve from lateral and medial roots coming from the lateral and medial cord of brachial plexus, respectively. Variations are commonly observed and being reported in the formation of lateral cord of brachial plexus and in the communication of branches of lateral cord of brachial plexus, but formation of median nerve by lateral root of median nerve from lateral cord and medial root of median nerve from medial cord at a substantially low level is quite unusual and the case reports regarding piercing of the coracobrachialis by lateral cord of brachial plexus are infrequent.
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