Scalenus pleuraris muscle
Citation, DOI, disclosures and article data
Citation:
Knipe H, Hacking C, Gaillard F, Scalenus pleuraris muscle. Reference article, Radiopaedia.org (Accessed on 14 Dec 2024) https://doi.org/10.53347/rID-35646
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rID:
35646
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Disclosures:
At the time the article was created Henry Knipe had no recorded disclosures.
View Henry Knipe's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Craig Hacking had no recorded disclosures.
View Craig Hacking's current disclosures
Revisions:
3 times, by
3 contributors -
see full revision history and disclosures
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Synonyms:
- Sibson's muscle
- Scalenus minimus
The scalenus pleuraris muscle (also known as scalenus minimus) is an anatomical variant; a small inconstantly identified ill-defined muscle usually extending from the C7 anterior tubercle to insert into the suprapleural membrane (of Sibson) and the first rib posterior to the groove for the subclavian artery 4. The presence of a scalenus minimus muscle has been well documented but with poor agreement on exact definition with prevalence ranging from 7.8 to 71.7% of cadaveric studies 4-6.
Summary
- origin: anterior tubercle of the transverse process of C7
- insertion: suprapleural membrane; inner border of first rib
Related pathology
- one of the causes of thoracic outlet syndrome
References
- 1. Thoracic Outlet Syndrome. Springer. ISBN:B00COFZGZI. Read it at Google Books - Find it at Amazon
- 2. Fawcett E. What is Sibson's Muscle (Scalenus pleuralis)?. J Anat Physiol. 2007;30 (Pt 3): 433-6. Free text at pubmed - Pubmed citation
- 3. Halim A. Human Anatomy: Regional and Clinical For Dental Students. I K International Publishing House. ISBN:8190656651. Read it at Google Books - Find it at Amazon
- 4. Sandra Rusnak-Smith, Marilyn Moffat, Elaine Rosen. Anatomical Variations of the Scalene Triangle: Dissection of 10 Cadavers. (2001) Journal of Orthopaedic & Sports Physical Therapy. 31 (2): 70-80. doi:10.2519/jospt.2001.31.2.70 - Pubmed
- 5. Natsis K, Totlis T, Didagelos M, Tsakotos G, Vlassis K, Skandalakis P. Scalenus minimus muscle: overestimated or not? An anatomical study. (2013) The American surgeon. 79 (4): 372-4. Pubmed
- 6. Sanli EC, Aktekin M, Kurtoglu Z. A case of large scalenus minimus muscle. (2007) Neurosciences (Riyadh, Saudi Arabia). 12 (4): 336-7. Pubmed
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