open access

Vol 78, No 1 (2019)
CASE REPORTS
Published online: 2018-07-03
Submitted: 2018-04-26
Accepted: 2018-05-30
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Bilateral anatomic variation in the relation of the upper trunk of the brachial plexus to the anterior scalene muscle

M. Radunovic, B. Vukcevic, M. Abramovic, N. Vukcevic, N. Radojevic, A. Vuksanovic-Bozaric
DOI: 10.5603/FM.a2018.0056
·
Pubmed: 30009368
·
Folia Morphol 2019;78(1):195-198.

open access

Vol 78, No 1 (2019)
CASE REPORTS
Published online: 2018-07-03
Submitted: 2018-04-26
Accepted: 2018-05-30

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.

Get Citation

Keywords

anterior scalene muscle; brachial plexus; thoracic outlet syndrome; upper trunk; variation

About this article
Title

Bilateral anatomic variation in the relation of the upper trunk of the brachial plexus to the anterior scalene muscle

Journal

Folia Morphologica

Issue

Vol 78, No 1 (2019)

Pages

195-198

Published online

2018-07-03

DOI

10.5603/FM.a2018.0056

Pubmed

30009368

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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