Transversus Nuchae Muscle Fused with Risorius Muscle: A Case Report

SUMMARY: Facial muscles are known to have a variable anatomy. Such anatomical variations can affect facial expressions. A natural smile is produced by contracting several muscles of facial expression, including the muscles invested in the superficial musculoaponeurotic system. Change in the width of...

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Autores principales:	Jovanovski,Trajche, Umek,Nejc, Cvetko,Erika
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2020
Materias:	Anatomical variation Transversus nuchal muscle Risorius muscle Facial expression Rhytidectomy
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022020000501208
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spelling	oai:scielo:S0717-950220200005012082021-06-10Transversus Nuchae Muscle Fused with Risorius Muscle: A Case ReportJovanovski,TrajcheUmek,NejcCvetko,Erika Anatomical variation Transversus nuchal muscle Risorius muscle Facial expression Rhytidectomy SUMMARY: Facial muscles are known to have a variable anatomy. Such anatomical variations can affect facial expressions. A natural smile is produced by contracting several muscles of facial expression, including the muscles invested in the superficial musculoaponeurotic system. Change in the width of the mouth on smiling is a known iatrogenic complication affecting the risorius muscle when using Botulinum Neurotoxin as a non-invasive treatment for masseteric hypertrophy. Also damage to the risorius muscle, with consequent clinical deficits, is a common surgical complication in facial aesthetic, oncologic and other head and neck procedures such as parotidectomy and rhytidectomy. Hence, a thorough knowledge of muscle anatomy, particularly its potential variations, is critical in reducing the associated operative morbidity. Accordingly, we report an unusual variation of the transversus nuchal muscle fused with the risorius muscle noted in an 83-year-old female body cadaver.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.38 n.5 20202020-10-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022020000501208en10.4067/S0717-95022020000501208
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Anatomical variation Transversus nuchal muscle Risorius muscle Facial expression Rhytidectomy
spellingShingle	Anatomical variation Transversus nuchal muscle Risorius muscle Facial expression Rhytidectomy Jovanovski,Trajche Umek,Nejc Cvetko,Erika Transversus Nuchae Muscle Fused with Risorius Muscle: A Case Report
description	SUMMARY: Facial muscles are known to have a variable anatomy. Such anatomical variations can affect facial expressions. A natural smile is produced by contracting several muscles of facial expression, including the muscles invested in the superficial musculoaponeurotic system. Change in the width of the mouth on smiling is a known iatrogenic complication affecting the risorius muscle when using Botulinum Neurotoxin as a non-invasive treatment for masseteric hypertrophy. Also damage to the risorius muscle, with consequent clinical deficits, is a common surgical complication in facial aesthetic, oncologic and other head and neck procedures such as parotidectomy and rhytidectomy. Hence, a thorough knowledge of muscle anatomy, particularly its potential variations, is critical in reducing the associated operative morbidity. Accordingly, we report an unusual variation of the transversus nuchal muscle fused with the risorius muscle noted in an 83-year-old female body cadaver.
author	Jovanovski,Trajche Umek,Nejc Cvetko,Erika
author_facet	Jovanovski,Trajche Umek,Nejc Cvetko,Erika
author_sort	Jovanovski,Trajche
title	Transversus Nuchae Muscle Fused with Risorius Muscle: A Case Report
title_short	Transversus Nuchae Muscle Fused with Risorius Muscle: A Case Report
title_full	Transversus Nuchae Muscle Fused with Risorius Muscle: A Case Report
title_fullStr	Transversus Nuchae Muscle Fused with Risorius Muscle: A Case Report
title_full_unstemmed	Transversus Nuchae Muscle Fused with Risorius Muscle: A Case Report
title_sort	transversus nuchae muscle fused with risorius muscle: a case report
publisher	Sociedad Chilena de Anatomía
publishDate	2020
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022020000501208
work_keys_str_mv	AT jovanovskitrajche transversusnuchaemusclefusedwithrisoriusmuscleacasereport AT umeknejc transversusnuchaemusclefusedwithrisoriusmuscleacasereport AT cvetkoerika transversusnuchaemusclefusedwithrisoriusmuscleacasereport
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Transversus Nuchae Muscle Fused with Risorius Muscle: A Case Report

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