A remarkable case report of an interrupted inferior vena cava with hemiazygos and transhepatic continuation
Keywords:
hemiazygos continuation, inferior vena cava, interrupted IVC, transhepatic continuationAbstract
Inferior vena cava (IVC) interruption with azygos/hemiazygos continuation is an extremely uncommon congenital vascular anomaly, which may present with multiple variants. As a result, it is challenging to find in the literature the same anatomical variant.
We report a unique case of an interrupted IVC with hemiazygos and transhepatic continuation in an 83-year-old female patient. The case was evaluated by performing Computed Tomography (CT) as imaging modality, with a multiphase protocol, able to detect accurately this complex vascular anomaly.
The purpose of this case report is not only to present this remarkable case but also to briefly show the types of interrupted IVC, starting from the anatomy and the embryology of the IVC and the azygos system, and to discuss the value of imaging in detecting the vascular anomaly.
References
Li SJ, Lee J, Hall J, Sutherland TR. The inferior vena cava: anatomical variants and acquired pathologies. Insights Imaging. 2021;12(1):123. doi:10.1186/s13244-021-01066-7
Demos TC, Posniak HV, Pierce KL, Olson MC, Muscato M. Venous Anomalies of the Thorax. Am J Roentgenol. 2004;182(5):1139-1150. doi:10.2214/ajr.182.5.1821139
Ghandour A, Partovi S, Karuppasamy K, Rajiah P. Congenital anomalies of the IVC—embryological perspective and clinical relevance. Cardiovasc Diagn Ther. 2016;6(6):482-492. doi:10.21037/cdt.2016.11.18
Vignesh S, Bhat TA. Unique Medley of Cardinal Veins: Duplicated Superior and Inferior Venae Cavae With Left Renal Agenesis and Hemiazygos Continuation of Left Inferior Vena Cava With Drainage Into Left Atrium. Vasc Endovascular Surg. 2022;56(3):330-334. doi:10.1177/15385744211051493
Liu Y, Guo D, Li J, et al. Radiological features of azygos and hemiazygos continuation of inferior vena cava: A case report. Medicine (Baltimore). 2018;97(17):e0546. doi:10.1097/MD.0000000000010546
Chen SJ, Wu MH, Wang JK. Clinical implications of congenital interruption of inferior vena cava. J Formos Med Assoc. 2022;121(10):1938-1944. doi:10.1016/j.jfma.2022.01.021
Sahin H, Pekcevik Y, Aslaner R. Double Inferior Vena Cava (IVC) With Intrahepatic Interruption, Hemiazygos Vein Continuation, and Intrahepatic Venous Shunt: A Rare Variant of IVC Anomalies. Vasc Endovascular Surg. 2017;51(1):38-42. doi:10.1177/1538574416687734
Koc Z, Oguzkurt L. Interruption or congenital stenosis of the inferior vena cava: Prevalence, imaging, and clinical findings. Eur J Radiol. 2007;62(2):257-266. doi:10.1016/j.ejrad.2006.11.028
Mandato Y, Pecoraro C, Gagliardi G, Tecame M. Azygos and hemiazygos continuation: An occasional finding in emergency department. Radiol Case Rep. 2019;14(9):1063-1068. doi:10.1016/j.radcr.2019.06.003
Holemans JA. Azygos, Not Azygous. Am J Roentgenol. 2001;176(6):1602-1602. doi:10.2214/ajr.176.6.1761602b
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Copyright (c) 2023 Federica Masino, Gianmichele Muscatella, Manuela Montatore, Rossella Gifuni, Giuseppe Guglielmi
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