Bilateral arterial and nervous variations in the human upper limb: a case report

Abstract

During routine dissection, we found bilateral arterial and nervous anomalies in a female cadaver. On the left side the axillary artery divided into a medial brachial artery and lateral profunda brachii artery, and the musculocutaneous nerve arose from the upper trunk of the brachial plexus, before the formation of the lateral cord. On the right side a common trunk that divided into the circumflex scapular artery, thoracodorsal artery and posterior circumflex humeral artery was observed, while the musculocutaneous nerve fused with the median nerve.