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      Inferior Vena Cava Duplication: Incidental Case in a Young Woman

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          Abstract

          A case of a double inferior vena cava (IVC) with retroaortic left renal vein, azygos continuation of the IVC, and presence of the hepatic portion of the IVC drained into the right renal vein is reported and the embryologic, clinical, and radiological significance is discussed. The diagnosis is suggested by multidetector computed tomography (MDCT), which reveals the aberrant vascular structures. Awareness of different congenital anomalies of IVC is necessary for radiologists to avoid diagnostic pitfalls and they should be remembered because they can influence several surgical interventions and endovascular procedures.

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          Most cited references17

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          Spectrum of congenital anomalies of the inferior vena cava: cross-sectional imaging findings.

          Congenital anomalies of the inferior vena cava (IVC) and its tributaries have become more commonly recognized in asymptomatic patients. The embryogenesis of the IVC is a complex process involving the formation of several anastomoses between three paired embryonic veins. The result is numerous variations in the basic venous plan of the abdomen and pelvis. A left IVC typically ends at the left renal vein, which crosses anterior to the aorta to form a normal right-sided prerenal IVC. In double IVC, the left IVC typically ends at the left renal vein, which crosses anterior to the aorta to join the right IVC. In azygos continuation of the IVC, the prerenal IVC passes posterior to the diaphragmatic crura to enter the thorax as the azygos vein. In circumaortic left renal vein, one left renal vein crosses anterior to the aorta and another crosses posterior to the aorta. In retroaortic left renal vein, the left renal vein passes posterior to the aorta. In circumcaval ureter, the proximal ureter courses posterior to the IVC. Other anomalies include absence of the infrarenal IVC or the entire IVC. These anomalies can have significant clinical implications. Awareness of these anomalies is necessary to avoid diagnostic pitfalls.
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            Anomalies of the inferior vena cava and renal veins: embryologic and surgical considerations.

            Anomalies of the inferior vena cava and renal veins occur infrequently but if unidentified can lead to significant morbidity during surgical exploration. An understanding of the embryologic development of the vena cava and its tributaries is necessary to understand the genesis of these sometimes complex anomalies and their accompanying anatomic variants. Newer radiologic modalities in the form of spiral computed tomography (CT) and three-dimensional reconstruction of spiral CT allow clear definition of the anatomy of these anomalies. Variations in the embryologic evolution of the vena cava dictate the different venous anomalies that may be encountered in the retroperitoneum. Additionally, the utility of newer radiologic modalities in the identification of these anomalies is discussed.
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              Duplication of the inferior vena cava: anatomy, embryology and classification proposal.

              A case of a duplicated inferior vena cava (IVC) along with other anatomical vessel variations in a 72-year-old male cadaver is presented. The anomalous vessels involved, besides the IVC, were the left testicular vein and artery, the left suprarenal artery and a superior accessory left renal artery. Based on the gross appearance of the preaortic anastomotic trunk between the left and right IVC as well as on the underlying embryological features, a classification is proposed: incomplete bilateral duplication of the IVC and complete bilateral duplication of the IVC. The latter can be further divided into three types: major, minor and asymmetric.
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                Author and article information

                Journal
                Case Rep Radiol
                Case Rep Radiol
                CRIRA
                Case Reports in Radiology
                Hindawi Publishing Corporation
                2090-6862
                2090-6870
                2016
                27 April 2016
                : 2016
                : 3071873
                Affiliations
                1Department of Surgery, Card. G. Panico Hospital of Tricase, 73039 Tricase, Italy
                2Department of Radiology, INRCA Hospital of Ancona, 60125 Ancona, Italy
                3Department of Surgery, C. Urbani Hospital of Jesi, 60035 Jesi, Italy
                Author notes

                Academic Editor: Salah D. Qanadli

                Article
                10.1155/2016/3071873
                4863078
                27217964
                cceeb21d-ff1d-4bfa-b49c-4a05f4552e90
                Copyright © 2016 Danilo Coco et al.

                This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                : 25 January 2016
                : 12 April 2016
                Categories
                Case Report

                Radiology & Imaging
                Radiology & Imaging

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