Aneurysms can also occur in the renal arteries—the arteries that supply blood to the kidneys. Renal arterial aneurysms are rare, occurring in less than one percent of the population.
Like abdominal aortic aneurysms, visceral arterial aneurysms, and peripheral arterial aneurysms, renal arterial aneurysms almost never show symptoms, and are found during procedures being performed for other reasons.
Renal arterial aneurysms rupture very infrequently, usually if the size is greater than 2 to 2.5 cm, although the potential for any aneurysm to rupture, regardless of its location, is always present.
Vascular and endovascular surgery is recommended for all people with renal arterial aneurysms that show symptoms, women of childbearing age, and aneurysms larger than 2 centimeters in size.