This case illustrates an unusual anomaly of the great veins. To our knowledge, these are the first published photographs of the vena cava traversing anterior to the distal aorta. This anatomic variant caused minor technical problems during open abdominal aortic aneurysm repair.
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Panicek DM, O'Moore PV, Castellino RAPreaortic iliac venous confluence (``Marsupial Cava''): a rare anomaly of the inferior vena cava. Urol Radiol. 1992 ;14:188-190.
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Pinedo JI, Castejon I., Cienfuegos JA, Ramos J., Chamorro JL, Ortiz Berrocal J.Diagnosis by ultrasonography and isotopic phlebography of a malformation of the inferior vena cava: proximal transposition with anterior crossing over aorta. Eur J Nucl Med. 1983;8:549-551.
