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Clinically significant neurovascular variations in the axilla and the arm – a case report

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Author(s): George BM | Nayak S | Kumar P

Journal: Neuroanatomy
ISSN 1303-1783

Volume: 6;
Issue: 1;
Start page: 36;
Date: 2007;
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Keywords: neuroanatomy | anatomy | median nerve | axillary artery | axillary vein | axilla | musculocutaneous nerve

ABSTRACT
Knowledge of neurovascular variations is important for surgeons who remove axillary lymph nodes, toanesthesiologists, and orthopedic surgeons. We found surgically important variations of axillary artery, axillaryvein, median, radial and musculocutaneous nerves in the right upper limb of a male cadaver. The axillary artery gave a large abnormal arterial trunk which in turn divided into a common circumflexhumeral-subscapular trunk and profunda brachii artery. The abnormal trunk was sandwiched between the tworoots of median nerve at its origin. There was an abnormal communicating branch between medial cord andradial nerve. The axillary vein was duplicated in most of its course and was abnormally large in size. In the armthe musculocutaneous nerve gave three communicating branches to the median nerve. The abnormality reported here might result in neurovascular compression symptoms in the upper limb andmight cause confusions in anesthesia and surgery.
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