Positional Anomaly Between the Brachial Plexus and the Scalene Muscles, Concomitant with an Anomalous Path of the Musculocutaneous Nerve. Case Report and Clinical Implication

SUMMARY: Anatomical variations of the scalene muscles are frequent, as are those of the brachial plexus and its terminal nerves. Nonetheless, these variations are reported separately in the literature. The aim of this work is to present a variation of scalene muscles, concomitant with an abnormal pa...

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Autores principales:	Farfán-C,Emilio, Echeverría-M,Mark, Inostroza-R,Verónica, Schneeberger-L,Daniela, Inzunza-H,Oscar
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2020
Materias:	Anterior scalene muscle Musculocutaneous nerve Anatomical variation
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022020000400845
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spelling	oai:scielo:S0717-950220200004008452020-09-08Positional Anomaly Between the Brachial Plexus and the Scalene Muscles, Concomitant with an Anomalous Path of the Musculocutaneous Nerve. Case Report and Clinical ImplicationFarfán-C,EmilioEcheverría-M,MarkInostroza-R,VerónicaSchneeberger-L,DanielaInzunza-H,Oscar Anterior scalene muscle Musculocutaneous nerve Anatomical variation SUMMARY: Anatomical variations of the scalene muscles are frequent, as are those of the brachial plexus and its terminal nerves. Nonetheless, these variations are reported separately in the literature. The aim of this work is to present a variation of scalene muscles, concomitant with an abnormal path of the musculocutaneous nerve. During a routine dissection of the cervical region, axilla and right anterior brachial region in an adult male cadaver, a supernumerary muscle fascicle was located in the anterior scalene muscle, altering the anatomical relations of C5 and C6 ventral branches of the brachial plexus. This variation was related to an anomalous path of the musculocutaneous nerve that did not cross the coracobrachialis muscle. It passed through the brachial canal along with the median nerve. It then sent off muscular branches to the anterior brachial region and likewise, communicating branches to the median nerve. The concomitant variations of the brachial plexus and scalene muscles they are not described frequently. Knowledge of these variations improves diagnosis, enhancing therapeutic and surgical approaches by reducing the possibility of iatrogenesis during cervical, axillary and brachial region interventions.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.38 n.4 20202020-08-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022020000400845en10.4067/S0717-95022020000400845
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Anterior scalene muscle Musculocutaneous nerve Anatomical variation
spellingShingle	Anterior scalene muscle Musculocutaneous nerve Anatomical variation Farfán-C,Emilio Echeverría-M,Mark Inostroza-R,Verónica Schneeberger-L,Daniela Inzunza-H,Oscar Positional Anomaly Between the Brachial Plexus and the Scalene Muscles, Concomitant with an Anomalous Path of the Musculocutaneous Nerve. Case Report and Clinical Implication
description	SUMMARY: Anatomical variations of the scalene muscles are frequent, as are those of the brachial plexus and its terminal nerves. Nonetheless, these variations are reported separately in the literature. The aim of this work is to present a variation of scalene muscles, concomitant with an abnormal path of the musculocutaneous nerve. During a routine dissection of the cervical region, axilla and right anterior brachial region in an adult male cadaver, a supernumerary muscle fascicle was located in the anterior scalene muscle, altering the anatomical relations of C5 and C6 ventral branches of the brachial plexus. This variation was related to an anomalous path of the musculocutaneous nerve that did not cross the coracobrachialis muscle. It passed through the brachial canal along with the median nerve. It then sent off muscular branches to the anterior brachial region and likewise, communicating branches to the median nerve. The concomitant variations of the brachial plexus and scalene muscles they are not described frequently. Knowledge of these variations improves diagnosis, enhancing therapeutic and surgical approaches by reducing the possibility of iatrogenesis during cervical, axillary and brachial region interventions.
author	Farfán-C,Emilio Echeverría-M,Mark Inostroza-R,Verónica Schneeberger-L,Daniela Inzunza-H,Oscar
author_facet	Farfán-C,Emilio Echeverría-M,Mark Inostroza-R,Verónica Schneeberger-L,Daniela Inzunza-H,Oscar
author_sort	Farfán-C,Emilio
title	Positional Anomaly Between the Brachial Plexus and the Scalene Muscles, Concomitant with an Anomalous Path of the Musculocutaneous Nerve. Case Report and Clinical Implication
title_short	Positional Anomaly Between the Brachial Plexus and the Scalene Muscles, Concomitant with an Anomalous Path of the Musculocutaneous Nerve. Case Report and Clinical Implication
title_full	Positional Anomaly Between the Brachial Plexus and the Scalene Muscles, Concomitant with an Anomalous Path of the Musculocutaneous Nerve. Case Report and Clinical Implication
title_fullStr	Positional Anomaly Between the Brachial Plexus and the Scalene Muscles, Concomitant with an Anomalous Path of the Musculocutaneous Nerve. Case Report and Clinical Implication
title_full_unstemmed	Positional Anomaly Between the Brachial Plexus and the Scalene Muscles, Concomitant with an Anomalous Path of the Musculocutaneous Nerve. Case Report and Clinical Implication
title_sort	positional anomaly between the brachial plexus and the scalene muscles, concomitant with an anomalous path of the musculocutaneous nerve. case report and clinical implication
publisher	Sociedad Chilena de Anatomía
publishDate	2020
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022020000400845
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Positional Anomaly Between the Brachial Plexus and the Scalene Muscles, Concomitant with an Anomalous Path of the Musculocutaneous Nerve. Case Report and Clinical Implication

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