Agenesie Vena cava inferior

An unusual
case of back pain. Triple phase renal protocol CT shows incidental finding of hyperdense thrombus in the infrarenal IVC. (see marker)
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An unusual
case of back pain. Triple phase renal CT. Lateral marker again indicates right renal cysts and medial marker indicates deficiency of the suprarenal IVC.
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An unusual
case of back pain. Venography with Digital Subtraction Angiography. Clockwise from inferior marker we see extensive lumbar, azygos and hemiazygos vein collateralisation respectively with a filling defect of the infrarenal IVC.
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