An unusual bilateral variation of musculocutaneous nerve.

Raju, S and Udaya Kumar, P and Ahmed Peer, S and Indira Devi, B (2013) An unusual bilateral variation of musculocutaneous nerve. Journal of Surgical Academia, 3 (1). pp. 13-15. ISSN 2231-7481

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Musculocutaneous nerve arises from the lateral cord (C5,6,7) of brachial plexus. Communications between the branches of brachial plexus are not so common. During routine dissection, we observed bilateral variation in 60-year-old female cadaver. In the present case, median nerve represented as a musculocutaneous nerve which supplied biceps brachii and brachialis, further continued into forearm as lateral cutaneous nerve of forearm on the right arm. This branch did not pass through coracobrachialis muscle but the coracobrachialis was innervated by a branch from lateral cord of brachial plexus. We also observed an abnormal communicating branch between the musculocutaneous and median nerve on left side of the arm. These kinds of variations are important for surgeons while performing surgeries of axilla and upperlimb.

Item Type:Article
Keywords:Brachial plexus; communication; median nerve; musculocutaneous nerve; lateral cutaneous nerve of forearm.
Journal:Journal of Surgical Academia
ID Code:6667
Deposited By: Mr. Muhammad Wafi -
Deposited On:02 Dec 2013 04:01
Last Modified:14 Dec 2016 06:41

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