Multiple Neurovascular Abnormalites of a Single Cadaver-A Case Report

During routine dissection of a 65 years old male cadaver in Kolkata Medical College; it was found that there was no standard formation of lateral cord of brachial plexus on right side because anterior division of upper trunk continued as Musculocutaneous nerve and the Median nerve was formed medial to the first part of Axillary artery just below and behind the Clavicle by the fibres of anterior division of middle trunk via lateral root and anterior division of lower trunk via medial root. About 1.5cm distal to its formation Median nerve gave a branch which crossed the second part of the Axillary artery and supplied the Coracobrachialis muscle in addition to Musculocutaneous nerve. A single Pectoral nerve was formed by union of two nerves arising from anterior division of middle and lower trunk respectively. The Musculocutaneous nerve of opposite limb was formed by union of two nerves arising from the lateral cord of brachial plexus. In posterior thoracic wall, a left sided Azygos vein and multiple communicating veins between Azygos and Hemiazygos vein were found. An altered relation between Tibial nerve and Posterior Tibial blood vessel and an abnormal termination of latter were encountered in right lower limb.