Variations of the External and Internal Jugular Veins: A Fetal Study

SUMMARY: The external jugular vein (EJV) is formed by the union of the posterior division of the retromandibular vein and posterior auricular vein, while the internal jugular vein (IJV) is a continuation of the sigmoid sinus. A number of variations in the formation, lengths and drainage patterns of...

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Autores principales:	Pillay,P., Ishwarkumar,S., Satyapal,K. S.
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2018
Materias:	External jugular vein Internal jugular vein Anatomical variation Fetal
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022018000100145
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spelling	oai:scielo:S0717-950220180001001452019-09-16Variations of the External and Internal Jugular Veins: A Fetal StudyPillay,P.Ishwarkumar,S.Satyapal,K. S. External jugular vein Internal jugular vein Anatomical variation Fetal SUMMARY: The external jugular vein (EJV) is formed by the union of the posterior division of the retromandibular vein and posterior auricular vein, while the internal jugular vein (IJV) is a continuation of the sigmoid sinus. A number of variations in the formation, lengths and drainage patterns of EJV and IJV have been documented in adults, however there is a paucity of literature regarding fetal studies. This study aimed to highlight variation patterns of external and internal jugular veins in 40 fetuses (n=80). This study included the bilaterally dissection of the neck region in 40 fetuses between the gestational ages of 15-28 weeks at the University of KwaZulu-Natal as per Grants Dissector. This study observed three variations in the pattern of the EJV and IJV. With regard to the EJV, duplication occurred on the sternocleidomastoid muscle in 4 % of the specimens sampled in this study, which concurred to a study conducted by Olabu et al. (2015) in a Kenyan sample. The “Y-shaped” IJV occurred in 1 % of the specimens, however the “Y-shaped” IJV gave off a tributary to the EJV in 3 % of the specimens sampled in this study. Lalwani et al. (2006) stated a rare venous communication between the EJV and IJV. The knowledge of the variable patterns of the external and internal jugular veins are important to clinicians performing micro-vascular surgeries in head and neck region.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.36 n.1 20182018-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022018000100145en10.4067/S0717-95022018000100145
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	External jugular vein Internal jugular vein Anatomical variation Fetal
spellingShingle	External jugular vein Internal jugular vein Anatomical variation Fetal Pillay,P. Ishwarkumar,S. Satyapal,K. S. Variations of the External and Internal Jugular Veins: A Fetal Study
description	SUMMARY: The external jugular vein (EJV) is formed by the union of the posterior division of the retromandibular vein and posterior auricular vein, while the internal jugular vein (IJV) is a continuation of the sigmoid sinus. A number of variations in the formation, lengths and drainage patterns of EJV and IJV have been documented in adults, however there is a paucity of literature regarding fetal studies. This study aimed to highlight variation patterns of external and internal jugular veins in 40 fetuses (n=80). This study included the bilaterally dissection of the neck region in 40 fetuses between the gestational ages of 15-28 weeks at the University of KwaZulu-Natal as per Grants Dissector. This study observed three variations in the pattern of the EJV and IJV. With regard to the EJV, duplication occurred on the sternocleidomastoid muscle in 4 % of the specimens sampled in this study, which concurred to a study conducted by Olabu et al. (2015) in a Kenyan sample. The “Y-shaped” IJV occurred in 1 % of the specimens, however the “Y-shaped” IJV gave off a tributary to the EJV in 3 % of the specimens sampled in this study. Lalwani et al. (2006) stated a rare venous communication between the EJV and IJV. The knowledge of the variable patterns of the external and internal jugular veins are important to clinicians performing micro-vascular surgeries in head and neck region.
author	Pillay,P. Ishwarkumar,S. Satyapal,K. S.
author_facet	Pillay,P. Ishwarkumar,S. Satyapal,K. S.
author_sort	Pillay,P.
title	Variations of the External and Internal Jugular Veins: A Fetal Study
title_short	Variations of the External and Internal Jugular Veins: A Fetal Study
title_full	Variations of the External and Internal Jugular Veins: A Fetal Study
title_fullStr	Variations of the External and Internal Jugular Veins: A Fetal Study
title_full_unstemmed	Variations of the External and Internal Jugular Veins: A Fetal Study
title_sort	variations of the external and internal jugular veins: a fetal study
publisher	Sociedad Chilena de Anatomía
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022018000100145
work_keys_str_mv	AT pillayp variationsoftheexternalandinternaljugularveinsafetalstudy AT ishwarkumars variationsoftheexternalandinternaljugularveinsafetalstudy AT satyapalks variationsoftheexternalandinternaljugularveinsafetalstudy
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Variations of the External and Internal Jugular Veins: A Fetal Study

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