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A Rare Variation in the Position of the Median Nerve: A Case Report
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M Baazm    , Y Asadi-Fard * |
| 1.Department of Anatomy, School of Medicine, Arak University of Medical Sciences, Arak, I.R.Iran. , usef.fard@yahoo.com |
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Abstract: (53 Views) |
Background and Objective: Several variations in the formation of the brachial plexus have been reported, and it is crucial to consider these variations when planning surgical approaches for treating injuries involving the brachial nerves.
Case Report: During routine upper limb dissection for medical students, the brachial plexus of 65-year-old male cadaver showed a rare variation. In this study, a variation concerning the configuration of the median nerve and medial cord branches is reported. An unusual variation was observed in the right axillary brachial plexus, where the median nerve was formed by the convergence of the lateral and medial roots from the lateral and medial cords of the brachial plexus, located at a lower point in the arm and posterior to the brachial artery. Additionally, the medial cord exhibited variation in the origin of the medial cutaneous nerves of the arm and forearm, arising from a single common trunk that separated in the middle of the arm.
Conclusion: Awareness of these variations is important for anatomists, radiologists, anesthesiologists, and surgeons, enabling them to interpret unexplained clinical signs and symptoms and potentially prevent post-operative complications during surgery.
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| Keywords: Brachial Plexus, Median Nerve, Axillary Artery, Medial Cord, Variation. |
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Type of Study: case report |
Subject:
Descriptive Sciences
Received: 2024/06/15 | Accepted: 2024/10/12
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