case report of concurrent variation of biceps brachii and musculocutaneous nerve in a cadaver

ABSTRACT

Different neuromuscular variations have been reported in the arm. In this case, a rare concurrent neuromuscular variation in right arm and a muscular variation in left arm are reported in a cadaver. During dissection of a cadaver, we found that the biceps brachii muscle had an additional head [third head] in both sides associated with a neural variation in the right side. In this case, the musculocutaneous nerve did not exist and was replaced by the branches of lateral root of the median nerve. The finding of this report, might be a major of significance for both anatomists and surgeons to reduce the prospective complications of surgery