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Click 11 year old male with dysgenesis of the inferior vena cava. Axial CT with only oral contrast (GastrographinŽ, 400 ml) shows the right to left course of the IVC with an area of increased contrast within the aberrant section, indicating thrombus.

Click 11 year old male with dysgenesis of the inferior vena cava. Axial CT with intravenous contrast and oral contrast (OmnipaqueTM 300mgI/ml (dose 60mls) and GastrographinŽ, 400 ml)
Findings: Caudally, the images show the superior mesenteric artery as it leaves the aorta and the dilated superior mesenteric vein. At the renal level dilated vertebral collateral veins arise from the aberrant IVC and the right renal vein. Within the thorax, the images show the dilated azygos and hemiazygos veins prior to their insertion in to the superior vena cava.


Click 11 year old male with dysgenesis of the inferior vena cava. Coronal Short T1 Inversion Recovery (STIR) MRI without contrast shows the course of the aberrant inferior vena cava as it crosses the midline from the right to left side.