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the right heart failure, portal hypertension or due to pregnancy can have the same clinical presentation as hemiazygos continuation of the IVC (5, 6, 10, 13). In the case of hemiazygos continuation of the IVC, the hepatic veins can drain directly into the right atrium (3, 10). An incidental finding of this condition during venous cannulation for cardiopulmonary bypass complicates the procedure, since no solid IVC trunk for placing the cannula is present. Separate cannulation of the SVC and the right atrium should be used in this case.
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The dilated hemiazygos system displayed by chest or abdominal X-ray films can be misdiagnosed as a mediastinal or retroperitoneal neoplasm, lymphadenopathy or aortic dissection (2, 5–7, 10). Venostasis which is the consequence of pathological conditions such as acquired obstruction of the IVC or SVC,
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on the right side of the body, and the hemiazygos vein and the accessory hemiazygos vein drain most of the posterior intercostal veins on the left side of the body. Specifically, the hemiazygos vein mirrors the bottom part of the azygos vein.
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448:. Department of Anatomy, Faculty of Medicine, Masaryk University, Brno, Czech Republic &Institute of Anatomy, Medical Faculty, University of Ljubljana, Ljubljana, Slovenia
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Rakovich, George; Fréchette, Éric; Deslauriers, Jean (2010-01-01), Lewis, Michael I.; McKenna, Robert J.; Falk, Jeremy A.; Chaux, George E. (eds.),
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at the SUNY Downstate
Medical Center - "Mediastinum: The Azygos Vein and Posterior Intercostal Veins"
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Satei, Alexander; Dhaliwal, Sampreet; Tsibulski, Alexander; Allen, Leslie (November 2022).
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Edward
Lamperti; Michael Schuenke; Erik Schulte; Udo Schumacher; Ross, Lawrence J. (2006).
129:) is a vein running superiorly in the lower thoracic region, just to the left side of the
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Akoum, Nazem; Hermsen, Joshua (2018-01-01), Poole, Jeanne E.; Larson, Lyle W. (eds.),
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The structure of the hemiazygos vein is often variable. It usually begins in the left
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Knowledge articles incorporating text from the 20th edition of Gray's
Anatomy (1918)
406:"Two concurrently occurring rare anatomic variants of the accessory hemiazygos vein"
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439:"CONGENITAL INTERRUPTION OF THE INFERIOR VENA CAVA WITH HEMIAZYGOS CONTINUATION"
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General
Anatomy and Musculoskeletal System (Thieme Atlas of Anatomy)
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means half. This vein mirrors the bottom half of the azygos vein.
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at The
Anatomy Lesson by Wesley Norman (Georgetown University) (
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The hemiazygos may or may not be continuous superiorly with the
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of the left side, and some esophageal and mediastinal veins.
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364:"9 - Considerations for Novel or Alternative Lead Placement"
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TRUBAâ R1. & HRIBERNIK M2. PÁâ L1 (December 2002).
149:. That is, the azygos vein serves to drain most of the
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181:, it passes rightward across the column, behind the
237:The name for this vein is derived from that of the
326:Medical Management of the Thoracic Surgery Patient
504:: Basic Human Anatomy at Dartmouth Medical School
173:. It continues ascending on the left side of the
30:Diagram showing completion of development of the
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328:, Philadelphia: W.B. Saunders, pp. 95–105,
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34:veins. (Hemiazygos vein visible at center-left.)
368:Surgical Implantation of Cardiac Rhythm Devices
322:"8 - Thoracic Surgical Anatomy and Procedures"
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263:This article incorporates text in the
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200:It receives the 9th, 10th, and 11th
177:, and around the level of the ninth
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591:Posterior of the left ventricle
600:Ligament of the left vena cava
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370:, Elsevier, pp. 173–180,
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141:The hemiazygos vein and the
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502:figures/chapter_24/24-2.HTM
418:10.35100/eurorad/case.17915
271:of the 20th edition of
202:posterior intercostal veins
151:posterior intercostal veins
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780:posterior intercostal 5-11
766:right superior intercostal
596:Oblique of the left atrium
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127:vena azygos minor inferior
820:vertebral venous plexuses
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693:left superior intercostal
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218:accessory hemiazygos vein
143:accessory hemiazygos vein
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54:, with their tributaries.
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496:Anatomy photo:21:12-0200
71:Left supracardinal vein
245:means 'unpaired', and
105:Anatomical terminology
489:postmediastinumlevel5
224:Clinical significance
167:crus of the diaphragm
159:ascending lumbar vein
785:accessory hemiazygos
683:anterior intercostal
743:pericardiacophrenic
688:superior epigastric
912:Veins of the torso
616:Small cardiac vein
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726:thoracoepigastric
678:internal thoracic
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179:thoracic vertebra
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812:Vertebral column
794:superior phrenic
748:internal jugular
736:external jugular
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19:Hemiazygos vein
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52:azygos veins
776:intercostal
239:azygos vein
195:azygos vein
147:azygos vein
87:Identifiers
81:Azygos vein
896:Categories
789:hemiazygos
710:subclavian
452:2018-07-09
423:2022-11-11
391:2020-11-12
349:2020-11-12
253:References
212:Variations
163:renal vein
842:posterior
771:bronchial
705:vertebral
661:vena cava
187:esophagus
137:Structure
77:Drains to
66:Precursor
48:venæ cavæ
847:anterior
830:internal
825:external
715:axillary
659:superior
461:cite web
269:page 667
204:and the
32:parietal
886:Anatomy
700:supreme
541:of the
410:Eurorad
233:History
60:Details
872:Portal
837:spinal
758:Azygos
555:Thorax
543:thorax
382:
340:
298:
277:(1918)
243:Azygos
189:, and
171:thorax
642:Lungs
564:Heart
539:Veins
442:(PDF)
267:from
183:aorta
109:[
93:Latin
545:and
467:link
380:ISBN
338:ISBN
296:ISBN
247:hemi
121:The
50:and
46:The
446:Med
414:doi
372:doi
330:doi
161:or
898::
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