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An Aberrant Subclavius Posticus Muscle: A Case Report
Objective:
An aberrant subclavius posticus muscle was found during routine dissection of the left infraclavicular fossa of a 60-year-old male cadaver.
Presentation:
This aberrant muscle arises antero-medially, from the costoclavicular ligament, runs postero-laterally, over the trunks of the brachial plexus, and postero-lateral has a common insertion with the omohyoid muscle.
Conclusion:
The presence of such an aberrant muscle may cause a dynamic compression of the subclavian artery and brachial plexus.
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