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Bilateral anatomic variation in the relation of the upper trunk of the brachial plexus to the anterior scalene muscle
- Faculty of Medicine, University of Montenegro, Podgorica, Montenegro
- Department of Forensic Medicine, Clinical Centre of Montenegro, Podgorica, Montenegro
open access
Abstract
The brachial plexus represents a field of many anatomical variations with impor- tant clinical implications, especially in the diagnosis and treatment of the thoracic outlet syndrome (TOS). The case described in this paper presented a novel bilateral variation in the relation of the upper trunk of the brachial plexus to the anterior scalene muscle. The ventral rami of the C5 and C6 spinal nerves perforated the anterior scalene muscle simultaneously through a common opening, and joined to form the upper trunk. Previous literature reports described variations of the brachial plexus and the scalene muscles, as well as the embryological basis for their presence. The case reported herein helps to improve the comprehension of the TOS, as well as the diagnostic and therapeutical approach to this syndrome.
Abstract
The brachial plexus represents a field of many anatomical variations with impor- tant clinical implications, especially in the diagnosis and treatment of the thoracic outlet syndrome (TOS). The case described in this paper presented a novel bilateral variation in the relation of the upper trunk of the brachial plexus to the anterior scalene muscle. The ventral rami of the C5 and C6 spinal nerves perforated the anterior scalene muscle simultaneously through a common opening, and joined to form the upper trunk. Previous literature reports described variations of the brachial plexus and the scalene muscles, as well as the embryological basis for their presence. The case reported herein helps to improve the comprehension of the TOS, as well as the diagnostic and therapeutical approach to this syndrome.
Keywords
anterior scalene muscle; brachial plexus; thoracic outlet syndrome; upper trunk; variation
Title
Bilateral anatomic variation in the relation of the upper trunk of the brachial plexus to the anterior scalene muscle
Journal
Issue
Article type
Case report
Pages
195-198
Published online
2018-07-03
Page views
2647
Article views/downloads
1498
DOI
Pubmed
Bibliographic record
Folia Morphol 2019;78(1):195-198.
Keywords
anterior scalene muscle
brachial plexus
thoracic outlet syndrome
upper trunk
variation
Authors
M. Radunovic
B. Vukcevic
M. Abramovic
N. Vukcevic
N. Radojevic
A. Vuksanovic-Bozaric
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