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Azygos and hemiazygos continuation: An occasional finding in emergency department
Interruption of the inferior vena cava (IVC) with azygos continuation is a rare congenital anomaly, in which the IVC is interrupted below the hepatic vein and venous return beyond this point is restored by the dilated azygos and hemiazygos veins draining into the superior vena cava. A case of the in...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6612666/ https://www.ncbi.nlm.nih.gov/pubmed/31320962 http://dx.doi.org/10.1016/j.radcr.2019.06.003 |
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author | Mandato, Ylenia Pecoraro, Cesira Gagliardi, Giuliano Tecame, Mario |
author_facet | Mandato, Ylenia Pecoraro, Cesira Gagliardi, Giuliano Tecame, Mario |
author_sort | Mandato, Ylenia |
collection | PubMed |
description | Interruption of the inferior vena cava (IVC) with azygos continuation is a rare congenital anomaly, in which the IVC is interrupted below the hepatic vein and venous return beyond this point is restored by the dilated azygos and hemiazygos veins draining into the superior vena cava. A case of the interruption of the IVC with azygos/emyazygos continuation for the absence of the hepatic segment of IVC, left renal vein duplication, and polysplenia is reported. The embryologic, clinical, and radiological significance are discussed. The diagnosis is suggested by X-ray, but contrast-enhanced multidetector computed tomography is the method of choice to diagnose this venous anomaly and reveals the aberrant vascular structures. Awareness of different congenital anomalies of IVC is important to surgeons and cardiologists and is necessary for radiologists to avoid diagnostic pitfalls and for preoperative planning: they should be remembered because they can influence several surgical interventions and endovascular procedures. Accidental ligation of the azygos vein is fatal and cardiac catheterization using the lower extremity vein is troublesome in patients with this condition. |
format | Online Article Text |
id | pubmed-6612666 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-66126662019-07-18 Azygos and hemiazygos continuation: An occasional finding in emergency department Mandato, Ylenia Pecoraro, Cesira Gagliardi, Giuliano Tecame, Mario Radiol Case Rep Emergency Radiology Interruption of the inferior vena cava (IVC) with azygos continuation is a rare congenital anomaly, in which the IVC is interrupted below the hepatic vein and venous return beyond this point is restored by the dilated azygos and hemiazygos veins draining into the superior vena cava. A case of the interruption of the IVC with azygos/emyazygos continuation for the absence of the hepatic segment of IVC, left renal vein duplication, and polysplenia is reported. The embryologic, clinical, and radiological significance are discussed. The diagnosis is suggested by X-ray, but contrast-enhanced multidetector computed tomography is the method of choice to diagnose this venous anomaly and reveals the aberrant vascular structures. Awareness of different congenital anomalies of IVC is important to surgeons and cardiologists and is necessary for radiologists to avoid diagnostic pitfalls and for preoperative planning: they should be remembered because they can influence several surgical interventions and endovascular procedures. Accidental ligation of the azygos vein is fatal and cardiac catheterization using the lower extremity vein is troublesome in patients with this condition. Elsevier 2019-06-29 /pmc/articles/PMC6612666/ /pubmed/31320962 http://dx.doi.org/10.1016/j.radcr.2019.06.003 Text en © 2019 The Authors http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Emergency Radiology Mandato, Ylenia Pecoraro, Cesira Gagliardi, Giuliano Tecame, Mario Azygos and hemiazygos continuation: An occasional finding in emergency department |
title | Azygos and hemiazygos continuation: An occasional finding in emergency department |
title_full | Azygos and hemiazygos continuation: An occasional finding in emergency department |
title_fullStr | Azygos and hemiazygos continuation: An occasional finding in emergency department |
title_full_unstemmed | Azygos and hemiazygos continuation: An occasional finding in emergency department |
title_short | Azygos and hemiazygos continuation: An occasional finding in emergency department |
title_sort | azygos and hemiazygos continuation: an occasional finding in emergency department |
topic | Emergency Radiology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6612666/ https://www.ncbi.nlm.nih.gov/pubmed/31320962 http://dx.doi.org/10.1016/j.radcr.2019.06.003 |
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