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Nonenhanced CT shows a hyperdense blood clot within the right renal artery and the right kidney with perinephric stranding.
Contrast-enhanced CT shows the hypodense blood clot within the lumen of the right renal artery and patchy enhancement of the right kidney with cortical rim sign.
Additional findings:
- calcified atherosclerosis plaques located at proximal of both left and right renal artery
- simple cyst located at the lower pole of the left kidney