Langer’s Axillary Arch and Its Clinical Implications.
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Date
2014-07
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Abstract
Introduction: The axillary arch muscle of Langer is the most common anatomical variant of axillary musculature
which is of clinical and surgical importance. It may lead to neurovascular compression syndrome in the cervicoaxillary
region and can be misinterpreted while examining axilla and also impairs movements of shoulder joint.
Observation: During routine dissection of axilla for undergraduate teaching, an unusual muscular slip in the
left axilla was observed .The muscular slip was extending from lattisimus dorsi muscle to undersurface of
pectoralis major muscle, arching over axillary vessels and cords of brachial plexus.
Conclusion: The axillary arch may cause obstruction to axillary vessels and nerves and may be involved in
thoracic outlet syndrome and shoulder instability. The knowledge of this muscular variant could help to minimize
intraoperative complications related to surgeries in or nearby axilla such as mastectomy, breast reconstruction
and axillary lymphadenectomy or lymph node biopsy.
Description
Keywords
Axillary arch, Langer’s muscle, Axilla, Anomalous muscle
Citation
Jyothi K C, Anupama K, Shetty Shailaja, Radhika P M. Langer’s Axillary Arch and Its Clinical Implications. International Journal of Anatomy and Research. 2014 Jul-Sep; 2(3): 481-484.