PMC5830816_01
(a) Axial and (b) coronal contrast-enhanced computed tomography image showing multiple wedge-shaped nonenhancing lesions in both kidneys (arrows) with edematous pancreas associated with a hypodense halo (arrowheads) around it. Note absence of perinephric fat stranding and presence of gallbladder wall thickening
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F1
In addition, there were multiple wedge-shaped areas in both kidneys without any hydronephrosis, nephrolithiasis, or perinephric fat stranding [Figure 1a and b].
(a) Diffusion-weighted image (b 1000) showing bright lesions in the right kidney (arrows) that appeared dark on apparent diffusion coefficient map. (b) T2-weighted image shows hypointense lesions in the right kidney (arrows). (c) Unenhanced and serial postcontrast VIBE images (d-f) showing progressively enhancing lesions in the right kidney that become more discrete on 5-min delay image (g)
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F2
T2 dark areas in both kidneys showing restricted diffusion [Figure 2a and b]. These areas were isointense on T1-weighted images, showed progressive enhancement on serial postcontrast images, and again well delineated on 5 min delayed images [Figure 2c-g]. Tumor markers were within normal limits.