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A well-defined rounded lesion is seen at the left renal hilum related to the renal vessels, measures 3.5 x 4 x 3.5 cm, elicits mixed low and high densities in the non-enhanced CT with marginal punctuate calcifications, it shows partial intense enhancement in the arterial phase with the remaining part appears hypodense and not enhanced consistent with a partially thrombosed renal artery aneurysm.
The posteromedial aspect of the left renal cortex shows hypodensity in the arterial phase with diminished enhancement suggestive of cortical hypoperfusion/ ischemia.
Left renal minute stones are noted.