PMC7790000_01
Ultrasonography of the abdomen. A, B, D) In both kidneys, linear calcifications along the pyramids. C) IVC occlusion with a massive calcification in the hepatic segment
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F1
US showed right kidney 54 mm long, left kidney 62 mm long, linear calcifications along the pyramids visible in both kidneys, more lesions in the left kidney (Figs. 1A, 1B, 1D). Doppler scan showed lack of visible blood flow from the renal veins to IVC, with compensatory flow from the renal veins to the paravertebral plexuses; IVC obliteration, with a massive calcification in the hepatic section (Fig. 1C); minor linear calcifications in the liver caudate lobe at the point of contact with IVC.
Magnetic resonance of the abdomen. Common iliac veins and IVC without contrast signal; venous outflow from the lower extremities and from the kidneys to the paravertebral plexuses
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F2
Magnetic resonance (MR) revealed no contrast flow in the iliac veins and IVC, compensatory venous outflow from the lower limbs and from the kidneys to the paravertebral plexuses (Fig. 2); in IVC, a segmental dilatation of 11 x 7 mm over a length of 23 mm spatially coincident with calcification described in the ultrasound scan.