PMC5219584_01
Anterior view of the abdominal and thoracic inferior vena cava. Note malposition of the inferior vena cava in the left side of the spine and aorta
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F1
During surgery a single left-sided IVC was observed; it originated from the confluence of the left and right common iliac veins and ascended vertically to the left side of the abdominal aorta and anterior to the ureter, receiving the right renal vein passing anterior to the aorta (Fig 1).
Inferior view of the liver. Note the absence of retrohepatic vena cava
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F2
There was no retrohepatic IVC in the case and drainage of hepatic veins were directly into the right atrium (Fig 2).
PMC5219584_02