Knowledge of brachial plexus anatomy is quite important for numerous invasive treatments such as surgical operations requiring deep neck dissection and regional anesthesia applications. In this case report, it is aimed to demonstrate a rare brachial plexus variation. During routine dissection in our laboratory we observed variations in the formation of trunks and cords on the right brachial plexus of embalmed 61 years old male cadaver. The awareness of anatomy and variations of the brachial plexus which is vulnerable to traumas and surgical procedures, would be beneficial to physicians during diagnostic and treatment steps.