{"id":857,"date":"2017-08-31T08:43:26","date_gmt":"2017-08-31T08:43:26","guid":{"rendered":"http:\/\/www.ijmhr.org\/IntJAnatRes\/?page_id=857"},"modified":"2017-08-31T08:43:26","modified_gmt":"2017-08-31T08:43:26","slug":"ijar-2017-317","status":"publish","type":"page","link":"https:\/\/www.ijmhr.org\/IntJAnatRes\/ijar-2017-317","title":{"rendered":"IJAR.2017.317"},"content":{"rendered":"
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Type of Article:<\/strong>\u00a0\u00a0Original Research<\/h3>\n

Volume 5; Issue 3.2 (August 2017)<\/strong><\/h3>\n

Page No.:<\/strong>\u00a04299-4302<\/h3>\n

DOI:\u00a0<\/strong>https:\/\/dx.doi.org\/10.16965\/ijar.2017.317<\/h3>\n

A CADAVERIC STUDY OF AZYGOS VENOUS SYSTEM<\/h3>\n

M\u00a0 Shilpa *1<\/sup>, K R Dakshayani 2<\/sup>.<\/strong><\/p>\n

*1 <\/sup>Postgraduate, Department of Anatomy, Mysore Medical College & Research Institute, Mysore. Karnataka, India.<\/p>\n

2<\/sup> Professor & Head, Department of Anatomy, Mysore Medical College & Research Institute, Mysore. Karnataka, India<\/p>\n

Address for Correspondence:<\/strong>\u00a0 Dr. M\u00a0 Shilpa, Postgraduate, Department of Anatomy, Mysore Medical College & Research Institute, Mysore. Karnataka, India. Mobile No: 7411543525\u00a0E-Mail:<\/strong> shilpa_ramling@yahoo.co.in<\/p>\n

ABSTRACT<\/strong><\/p>\n

Background<\/strong>: The azygos venous system consists of the azygos vein on the right side and the hemiazygos and accessory hemiazygos on the left side. The latter two are said to be the tributaries rather than the equivalent of the azygos vein. This unpaired venous system is said to be full of anatomical variations and hence of much clinical significance.<\/p>\n

Aim<\/strong>: To study and report the prevalence of any anatomical variation of azygos venous system.<\/p>\n

Materials and Methods: <\/strong>The present study was carried out in the Department of Anatomy, MMC & RI, Mysore, over a period of 2 years. A total of 20 cadavers irrespective of age and sex were dissected for study purpose. The entire course of the azygos venous system in these 20 cadavers was carefully dissected and documented.<\/p>\n

Observations<\/strong>:\u00a0 In present study among 20 cadavers, 2 adult male cadavers showed variation during dissection of posterior thoracic wall, we found that in one cadaver azygos vein running on left side of vertebral column, hemiazygos and accessory hemiazygos veins were absent. \u00a0In another cadaver we found that arch of azygos on left side with osteophytic changes of vertebral column.<\/p>\n

Conclusion:<\/strong> Venous abnormalities often complicate mediastinal surgery with intra operative hemorrhage. Prior knowledge of possible anatomical variations may help the surgeons to reduce the risk of such events. Also presence of such variations may lead to misinterpretation of thoracic CT and MRI findings of the posterior mediastinum.<\/p>\n

KEY WORDS<\/strong>: Azygos vein, Hemiazygos vein, Accessory hemiazygos vein.<\/p>\n

REFERENCES<\/strong><\/p>\n

    \n
  1. Datta AK. Thorax and abdomen. In: Datta AK, eds. Essentials of Human Anatomy. 9th ed. Kolkata: Current Books International; 2010;100-102.<\/li>\n
  2. Susan Standring. Azygos vein. In: Susan Standring, eds. Gray\u2019s Anatomy: the Anatomical Basis of Clinical Practice. 40th ed. London: Churchill Livingstone Elsevier; 2008;939-940.<\/li>\n
  3. Piciucchi S, Barone D,\u00a0 Sanna S,\u00a0Dubini A,\u00a0 Goodman L ,\u00a0Oboldi D ,et al . The azygos vein pathway: An overview from anatomical variations to pathological changes 2014 Oct;5(5):619\u2013628.<\/li>\n
  4. Kutoglu T, Turut M, Kocabiyik N, Ozan H, Yildirim M. Anatomical analysis of azygos vein system in human cadavers. Rom J Morphol Embryol. 2012;53(4):1051-6.<\/li>\n
  5. Kagami H, Sakai H. The problems in the arrangement of the azygos vein. Okajimas Folia Anatomy, Japan 1990;67(2-3):111-114p.<\/li>\n
  6. Lydia SQ, Bhagath KP, Anitha G, Thejodhar P, Biswabina R, Suhani SD, et al. Anomalous azygos venous system in a south Indian cadaver: a case report. Cases J. 2009; 2:6746.<\/li>\n
  7. Bergman RA, Thompson SA, Afifi AK, Saadeh FA.Compendium of Human Anatomic Variation: Catalog, Atlas and World Literature<\/em>.\u00a0Baltimore, Md, USA: Urban & Schwarzenberg; 1988.<\/li>\n
  8. Coscina WF, Arger H, Mintz MC, Coleman BG: Concurrent duplication and azygos continuation of the inferior vena cava.1986, J Comput Tomogr 1986<\/em>;10:287-290.<\/em><\/li>\n
  9. Mahato, NK. Anomalous accessory hemi-azyos system with persistent cranial segment of posterior cardinal vein – A case report J. Morphol. Sci., 2009;26(3-4):177-179.<\/li>\n
  10. Suat Keskin,\u00a0Zeynep Keskin,\u00a0<\/sup>and\u00a0Nevin Sekmenli.The Independent Right and Left Azygos Veins with Hemiazygos Absence: A Rare Case Presentation \u00a0\u00a0\u00a0\u00a0\u00a0http:\/\/dx.doi.org\/10.1155\/2013\/282416.Volume\u00a02013\u00a0, Article ID\u00a0282416, 3 pages.<\/li>\n
  11. Badagabettu S N,\u00a0 Shetty P,\u00a0 D’Souza M R .J Cardiovasc Echograph. A Unique Variation of Azygos System of Veins.2016; 26(2):61-64.<\/li>\n
  12. Srinivas Rao. Anatomical variations of the azygos venous system. Int J BiolMed Res. 2014;5(4):4535-4538.<\/li>\n
  13. Vijaya Nirmala, Teresa Rani S. Study of Azygos System and its Variations. Journal of Evolution of Medical and Dental Sciences 2015;4(33):5652-5657.<\/li>\n
  14. Shivanal U, Geethanjali HT. Anomalous azygos veins – its embryological basis and clinical significance. Int J Res Med Sci 2015;3:2323-6.<\/li>\n<\/ol>\n

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    \n \t Cite this article:<\/strong><\/span> M Shilpa, K R Dakshayani. A CADAVERIC STUDY OF AZYGOS VENOUS SYSTEM. Int J Anat Res 2017;5(3.2):4299-4302. DOI:\u00a0<\/strong>10.16965\/ijar.2017.317 \u00a0\n <\/div>\t\n\t\t\n","protected":false},"excerpt":{"rendered":"

    Type of Article:\u00a0\u00a0Original Research Volume 5; Issue 3.2 (August 2017) Page No.:\u00a04299-4302 DOI:\u00a0https:\/\/dx.doi.org\/10.16965\/ijar.2017.317 A CADAVERIC STUDY OF AZYGOS VENOUS SYSTEM M\u00a0 Shilpa *1, K R Dakshayani 2. *1 Postgraduate, Department of Anatomy, Mysore Medical College & Research Institute, Mysore. Karnataka, India. 2 Professor & Head, Department of Anatomy, Mysore Medical College & Research Institute, Mysore.
    + Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/www.ijmhr.org\/IntJAnatRes\/wp-json\/wp\/v2\/pages\/857"}],"collection":[{"href":"https:\/\/www.ijmhr.org\/IntJAnatRes\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.ijmhr.org\/IntJAnatRes\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.ijmhr.org\/IntJAnatRes\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ijmhr.org\/IntJAnatRes\/wp-json\/wp\/v2\/comments?post=857"}],"version-history":[{"count":1,"href":"https:\/\/www.ijmhr.org\/IntJAnatRes\/wp-json\/wp\/v2\/pages\/857\/revisions"}],"predecessor-version":[{"id":858,"href":"https:\/\/www.ijmhr.org\/IntJAnatRes\/wp-json\/wp\/v2\/pages\/857\/revisions\/858"}],"wp:attachment":[{"href":"https:\/\/www.ijmhr.org\/IntJAnatRes\/wp-json\/wp\/v2\/media?parent=857"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}