Abstract
Purpose
The cleidocervicalis muscle occurs in approximately 1–3 % of the population that may be confused with pathological neck masses. We describe a novel variant of the muscle and its clinical implications.
Methods
This is a case report of a cleidocervicalis muscle variant identified during routine cadaveric dissection.
Results
The muscle identified originated on the C5 vertebra and inserted on the clavicle medial to the trapezius muscle. Innervation was provided by a C6 spinal nerve branch. Notably, a branch of the supraclavicular nerve was closely associated with the muscle, raising the possibility of compression of this nerve.
Conclusions
Presence of a cleidocervicalis muscle should be considered in cases of shoulder pain consistent with supraclavicular nerve entrapment or compression.
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Conflict of interest
The authors declare that they have no conflict of interest.
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The experiments comply with the current laws of the country in which they were performed.
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Billings, H.J., Sherrill, W.C. A novel variant of the cleidocervicalis muscle with clinical implications for nerve compression/entrapment. Surg Radiol Anat 37, 697–699 (2015). https://doi.org/10.1007/s00276-014-1384-5
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DOI: https://doi.org/10.1007/s00276-014-1384-5