Case report: Presence of bilateral pectoralis intermedius in a European cadaver

During a routine dissection of a 99-year-old female cadaver we encountered the presence of bilateral supernumerary muscles in the pectoral region. The muscle originated on the anterior surface of the fourth rib and inserted onto the coracoid process and anterior glenohumeral joint capsule via an apo...

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Main Authors: Claire Lewis (Author), Denis Barry (Author)
Format: Book
Published: Elsevier, 2024-09-01T00:00:00Z.
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100 1 0 |a Claire Lewis  |e author 
700 1 0 |a Denis Barry  |e author 
245 0 0 |a Case report: Presence of bilateral pectoralis intermedius in a European cadaver 
260 |b Elsevier,   |c 2024-09-01T00:00:00Z. 
500 |a 2214-854X 
500 |a 10.1016/j.tria.2024.100312 
520 |a During a routine dissection of a 99-year-old female cadaver we encountered the presence of bilateral supernumerary muscles in the pectoral region. The muscle originated on the anterior surface of the fourth rib and inserted onto the coracoid process and anterior glenohumeral joint capsule via an aponeurosis and was deduced to be the pectoralis intermedius muscle. The pectoralis minor muscle was found to have originated on ribs 2 to 4 anteriorly and inserted into the coracoid process of the scapuvdla thereby shifting cranially. The pectoralis intermedius muscle has controversial classifications and variable embryological origin theories, thus making it not only a rare muscle to encounter but a difficult one to categorize. The objective of this investigation was to study a rare case of bilateral pectoralis intermedius muscle aberrations and discuss its clinical significance. 
546 |a EN 
690 |a Pectoralis intermedius 
690 |a Variation 
690 |a Supernumerary pectoral muscle 
690 |a Cadaver 
690 |a Classification 
690 |a Human anatomy 
690 |a QM1-695 
655 7 |a article  |2 local 
786 0 |n Translational Research in Anatomy, Vol 36, Iss , Pp 100312- (2024) 
787 0 |n http://www.sciencedirect.com/science/article/pii/S2214854X24000335 
787 0 |n https://doaj.org/toc/2214-854X 
856 4 1 |u https://doaj.org/article/74d744aa7f0b4611b3ec83d421abe3d8  |z Connect to this object online.