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Study of Axillary Arch: Embryological Basis and Its Clinical Implications
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Why is it important?
Aim: To study the incidence, embryological basis and clinical implications of unusual but most common anatomical variant, axillary arch. Materials & Methods: The study was conducted in the department of Anatomy, Subbaiah Institute of Medical Sciences, Shimoga during routine cadaveric dissection on 60 upper limbs. Results: Of the 60 upper limbs dissected, Axillary arch was seen in one right upper limb. It was extending between latissimus dorsi and fascia covering the subscapularis muscle after crossing the posterior cord of brachial plexus and circumflex scapular vessels. It was supplied by a branch from the thoracodorsal nerve. Conclusion: The presence of an axillary arch needs to be considered in differential diagnosis of axillary swellings and also in surgeries of shoulder region. Therefore it is mandatory to know the variant slips of the musculotendinous arch.
Perspectives
Aim: To study the incidence, embryological basis and clinical implications of unusual but most common anatomical variant, axillary arch. Materials & Methods: The study was conducted in the department of Anatomy, Subbaiah Institute of Medical Sciences, Shimoga during routine cadaveric dissection on 60 upper limbs. Results: Of the 60 upper limbs dissected, Axillary arch was seen in one right upper limb. It was extending between latissimus dorsi and fascia covering the subscapularis muscle after crossing the posterior cord of brachial plexus and circumflex scapular vessels. It was supplied by a branch from the thoracodorsal nerve. Conclusion: The presence of an axillary arch needs to be considered in differential diagnosis of axillary swellings and also in surgeries of shoulder region. Therefore it is mandatory to know the variant slips of the musculotendinous arch.
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This page is a summary of: Study of Axillary Arch: Embryological Basis and Its Clinical Implications, Indian Journal of Anatomy, January 2018, Red Flower Publication Private, Ltd.,
DOI: 10.21088/ija.2320.0022.7318.12.
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