Abstract

Many formative variations of median nerve are known but this variant formation and course of median nerve is rare. A variant formation of median nerve was noted in the axilla and arm of a male cadaver, in the form of formation of median nerve behind the third part of axillary artery and brachial artery wind around median nerve. There may be compression of the nerve passing around the artery. This variation may be clinically important because symptoms of median nerve compression arising from similar variations are often confused with more common causes such as radiculopathy and carpal tunnel syndrome. During routine dissection, one of the cadaver showed bilateral abnormal course of brachial artery in the arm. In the right arm: In the axilla, median nerve present posterior to the artery. In the left arm: brachial artery twisting around the median nerve. At the level of the neck of radius brachial artery dividing into radial and ulnar arteries in both side of upper limb.

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