Both kidneys are mildly enlarged with patchy areas of hypoenhancing cortex at the corticomedullary phase and heterogeneous patchy contrast opacification at nephrographic phase with persistent patchy enhancement at the delayed excretory phase.
The swollen kidneys exert compression upon the pelvicalyceal system bilaterally with marked perinephric stranding as well as thickened Gerota's fascia.
Bilateral small foci of persistent hypoenhancement surrounded by perifocal edema suggestive of microabscesses.