Simultaneous Occurrence of Three Anatomical Variations: Anomalous Right Subclavian Artery, Non-Recurrent Inferior Laryngeal Nerve and Right Thoracic Duct

In one male cadaver of Colombian nationality, dissected by a group of medical students during a gross anatomy course at the Universidad del Valle in Cali, Colombia, three anatomical variations were found: an anomalous or aberrant right subclavian artery (ARSA), a non-recurrent inferior laryngeal ner...

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Autores principales:	Peña,Elizabeth, Zúñiga,Janneth, Baena,Gloria
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2013
Materias:	Aberrant right subclavian artery Recurrent laryngeal nerve Thoracic duct Genetic variation
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000400006
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spelling	oai:scielo:S0717-950220130004000062014-02-18Simultaneous Occurrence of Three Anatomical Variations: Anomalous Right Subclavian Artery, Non-Recurrent Inferior Laryngeal Nerve and Right Thoracic DuctPeña,ElizabethZúñiga,JannethBaena,Gloria Aberrant right subclavian artery Recurrent laryngeal nerve Thoracic duct Genetic variation In one male cadaver of Colombian nationality, dissected by a group of medical students during a gross anatomy course at the Universidad del Valle in Cali, Colombia, three anatomical variations were found: an anomalous or aberrant right subclavian artery (ARSA), a non-recurrent inferior laryngeal nerve and a right thoracic duct. The aortic arch gave origin to four instead of three arteries, which, from right to left, were the right common carotid, the left common carotid, the left subclavian and the right subclavian arteries. The anatomical variation of the right subclavian artery is known also as lusoria artery, in which case the artery passes behind the esophagus and the trachea in its course towards the right side of the neck. The perimeters of the aortic arch and of the lusoria artery were measured in different sites; those of the lusoria artery gradually reduced during the course of the artery towards the right side of the neck. The non-recurrent inferior laryngeal nerve originated at a right angle from the right vagus nerve, at the level of the thyroid gland. The nerve described a horizontal course in its way towards the larynx, passing behind the right lobe of the gland, in close relation with the branches of the inferior thyroid artery. Of the three possible variations in the course of the non-recurrent inferior laryngeal nerve, the one found corresponds to the horizontal course or type II. The course of the thoracic duct in the thorax was normal, situated behind the esophagus, between the azygos vein and the thoracic aorta, but it gradually deviated towards the right side of the neck to end in the internal jugular vein. Out of the extensive databases that were consulted, only one report was found of these three simultaneous variations.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.31 n.4 20132013-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000400006en10.4067/S0717-95022013000400006
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Aberrant right subclavian artery Recurrent laryngeal nerve Thoracic duct Genetic variation
spellingShingle	Aberrant right subclavian artery Recurrent laryngeal nerve Thoracic duct Genetic variation Peña,Elizabeth Zúñiga,Janneth Baena,Gloria Simultaneous Occurrence of Three Anatomical Variations: Anomalous Right Subclavian Artery, Non-Recurrent Inferior Laryngeal Nerve and Right Thoracic Duct
description	In one male cadaver of Colombian nationality, dissected by a group of medical students during a gross anatomy course at the Universidad del Valle in Cali, Colombia, three anatomical variations were found: an anomalous or aberrant right subclavian artery (ARSA), a non-recurrent inferior laryngeal nerve and a right thoracic duct. The aortic arch gave origin to four instead of three arteries, which, from right to left, were the right common carotid, the left common carotid, the left subclavian and the right subclavian arteries. The anatomical variation of the right subclavian artery is known also as lusoria artery, in which case the artery passes behind the esophagus and the trachea in its course towards the right side of the neck. The perimeters of the aortic arch and of the lusoria artery were measured in different sites; those of the lusoria artery gradually reduced during the course of the artery towards the right side of the neck. The non-recurrent inferior laryngeal nerve originated at a right angle from the right vagus nerve, at the level of the thyroid gland. The nerve described a horizontal course in its way towards the larynx, passing behind the right lobe of the gland, in close relation with the branches of the inferior thyroid artery. Of the three possible variations in the course of the non-recurrent inferior laryngeal nerve, the one found corresponds to the horizontal course or type II. The course of the thoracic duct in the thorax was normal, situated behind the esophagus, between the azygos vein and the thoracic aorta, but it gradually deviated towards the right side of the neck to end in the internal jugular vein. Out of the extensive databases that were consulted, only one report was found of these three simultaneous variations.
author	Peña,Elizabeth Zúñiga,Janneth Baena,Gloria
author_facet	Peña,Elizabeth Zúñiga,Janneth Baena,Gloria
author_sort	Peña,Elizabeth
title	Simultaneous Occurrence of Three Anatomical Variations: Anomalous Right Subclavian Artery, Non-Recurrent Inferior Laryngeal Nerve and Right Thoracic Duct
title_short	Simultaneous Occurrence of Three Anatomical Variations: Anomalous Right Subclavian Artery, Non-Recurrent Inferior Laryngeal Nerve and Right Thoracic Duct
title_full	Simultaneous Occurrence of Three Anatomical Variations: Anomalous Right Subclavian Artery, Non-Recurrent Inferior Laryngeal Nerve and Right Thoracic Duct
title_fullStr	Simultaneous Occurrence of Three Anatomical Variations: Anomalous Right Subclavian Artery, Non-Recurrent Inferior Laryngeal Nerve and Right Thoracic Duct
title_full_unstemmed	Simultaneous Occurrence of Three Anatomical Variations: Anomalous Right Subclavian Artery, Non-Recurrent Inferior Laryngeal Nerve and Right Thoracic Duct
title_sort	simultaneous occurrence of three anatomical variations: anomalous right subclavian artery, non-recurrent inferior laryngeal nerve and right thoracic duct
publisher	Sociedad Chilena de Anatomía
publishDate	2013
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000400006
work_keys_str_mv	AT penaelizabeth simultaneousoccurrenceofthreeanatomicalvariationsanomalousrightsubclavianarterynonrecurrentinferiorlaryngealnerveandrightthoracicduct AT zunigajanneth simultaneousoccurrenceofthreeanatomicalvariationsanomalousrightsubclavianarterynonrecurrentinferiorlaryngealnerveandrightthoracicduct AT baenagloria simultaneousoccurrenceofthreeanatomicalvariationsanomalousrightsubclavianarterynonrecurrentinferiorlaryngealnerveandrightthoracicduct
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Simultaneous Occurrence of Three Anatomical Variations: Anomalous Right Subclavian Artery, Non-Recurrent Inferior Laryngeal Nerve and Right Thoracic Duct

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