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Subclavius Posticus Muscle: Accessory Muscle with Clinical Relevance to Thoracic Outlet Syndrome
Author(s) -
Arrick Denise Mary,
Stevens Kelsey,
Inglis Stuart,
Das Manas
Publication year - 2018
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.2018.32.1_supplement.513.10
Subject(s) - anatomy , neurovascular bundle , medicine , thoracic outlet syndrome , brachial plexus , scapula , dissection (medical) , clinical significance , cadaver , thoracic outlet , rib cage , surgery , pathology
During a routine anatomical dissection, an aberrant muscle was discovered in the left neck region in a cadaver of an 80‐yr‐old male. The accessory muscle originated from the superior angle of the scapula and inserted to the superior margin of the first rib cartilage. The muscle ran anterior to the trunks of the brachial plexus and subclavian vessels. Due to its origin and insertion, the aberrant muscle was considered to be the subclavius posticus muscle. The subclavius posticus muscle has been reported to play a role in thoracic outlet syndrome, which occurs by neurovascular structures being compressed in the thoracic outlet region. The variants of subclavius posticus muscle, its development and its clinical significance to thoracic outlet syndrome will be discussed. This abstract is from the Experimental Biology 2018 Meeting. There is no full text article associated with this abstract published in The FASEB Journal .