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Evidence of the sternalis muscle in two South African cadavers
G. Davimes Joshua, Bacci Nicholas,
Published in Springer
2018
PMID: 29931531
Volume: 40
   
Issue: 11
Pages: 1313 - 1317
Abstract

The sternalis muscle is an infrequent, non-pathological anatomical variant typically misrepresented in a clinical context. It presents with 3–8% prevalence, according to cadaveric studies. The muscles were identified during routine cadaver prosection at the School of Anatomical Sciences, University of the Witwatersrand. Here, we report two cases of the sternalis muscle in two South African White cadavers. Analysis of the sternalis muscles revealed unilaterally present, distinctly defined muscle masses on the right (case number 1, female) and left (case number 2, male) hemithorax, lateral to the sternum. The muscles occurred with a prevalence of 2.25% within the cadaveric population examined. The prevalence of the sternalis muscle is generally low, especially in the European population. Their presence represents the remnants of the cutaneous muscles in the ventral thorax of lower animals. Clinically, the sternalis muscle may be misinterpreted as a pathological mass or lesion, thus accurate knowledge regarding its variations and prevalence is of importance.

About the journal
JournalData powered by TypesetSurgical and Radiologic Anatomy
PublisherData powered by TypesetSpringer
ISSN09301038
Open AccessNo