Five Supernumerary Renal Arteries Originating From the Aorta Associated With Ureteropelvic Junction Extrinsic Compression.

A 65-year-old woman presented with recurrent urinary tract infections. A computed tomography of the abdomen and pelvis shows a dilated and malrotated right renal pelvis consistent with a ureteropelvic junction obstruction as well as multiple renal arteries arising from the aorta. A computed tomography angiography revealed 5 separate renal arteries originating from the aorta with a single renal artery crossing over and obstructing the right renal pelvis. On Lasix renogram, the affected kidney contributes 45% of total renal function. The patient remained asymptomatic (absent of hematuria, flank pain, infection) and opted for active surveillance.