Volume 12, Number 4Case ReviewSpontaneous Rupture of a Renal Artery Aneurysm Presenting as Gross HematuriaShawn EL WasonThomas SchwaabRenal artery aneurysms (RAAs) are localized dilations of the renal artery and/or its branches. They are being found with increasing frequency as a result of unrelated abdominal imaging or on workup for hypertension. They are rarely symptomatic; however, they can be a cause of life-threatening hematuria. Discussed is the case of a previously healthy 46-year-old man presenting with flank pain and gross hematuria. It is imperative for the practicing urologist to be aware of the appropriate evaluation and management of RAAs.[Rev Urol. 2010;12(4):e193-e196 doi: 10.3909/riu0489]© 2010 MedReviews®, LLCRenal artery aneurysmAbdominal aortographyGross hematuria