The Renal Artery Aneurysm (RAA) is a relatively uncommon vascular lesion. A renal artery disease coexisting in patients with Renal Cell Carcinoma (RCC) is an even more infrequent clinical presentation. We reported on the treatment of a rare case of incidentally intraoperative renal artery aneurysm discovered during a nephron-sparing surgery for RCC. After the surgery the patient did not need hypertension therapy any longer. This event is well-known, in fact a number of possible contributions to a renin-mediated hypertension management has been postulated.
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