Unilateral presentation of three muscles variants in the pectoral region
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Authors
Terfera, David R.
Kelliher, Kevin R.
Issue Date
2014-03-28
Type
Presentation
Language
en_US
Keywords
Faculty research day , Naturopathy , Muscles
Alternative Title
Abstract
In this case report, we observed a situation in which three variant muscles presented unilaterally in a single cadaver. We observed that the pectoralis major muscle had a deficient sternocostal head. Also present were two muscles rarely observed in humans, a sternalis muscle, and a pectoralis quartus muscle. The existence of these muscle variants occurring individually in humans has been described in the literature for over a century. However, this is the first report of all three variants occurring simultaneously in one individual.