Description:
<p>Variations in the course and branches of the musculocutaneous nerve and the absence of the nervehave been reported in the literature. During the routine dissection of a 65-year-old male cadaver,we observed a variant brachial plexus characterized by the absence of the musculocutaneousnerve bilaterally. The median nerve took over the area of supply of the musculocutaneous nerveby giving both the muscular and sensory branches. The coracobrachialis muscle was innervatedby a branch of lateral cord bilaterally. From median nerve, two branches emerged: one to bicepsbrachii muscle and the other one to brachialis muscle, which continued as lateral cutaneous nerveof forearm. We also observed a communicating branch between ulnar and radial nerves at highhumeral level at right side. A branch emerged from this communicating branch and innervatedtriceps brachii muscle. These variations have clinical significance during surgical procedures inbrachial plexus block, diagnostic clinical neurophysiology.<br></p>