Anatomical Variation of the Musculocutaneous Nerve: Case Report

Understanding the anatomical variations of the brachial plexus is essential in the evaluation and preparation of surgical procedures, aiming to ensure treatment safety. One of the variations observed during routine dissection was present in the course of the musculocutaneous nerve , which is capable of communicating with the median nerve. Through dissection of a male cadaver, it was observed that the musculocutaneous nerve did not pierce the coracobrachialis muscle and that it communicated with the median nerve in the middle third of the arm. This finding is of academic relevance, as it reveals a variation that conforms to the patterns described in recent research. This represents a significant contribution to topographic anatomy, as well as to pre-surgical and intraoperative evaluation procedures.