How big is a 9.9MM renal artery aneurysm?

A 9.9 mm renal artery aneurysm is approximately 0.39 inches in diameter. This size indicates a relatively small aneurysm, as renal artery aneurysms are typically classified as small (less than 2 cm or 20 mm) or large (greater than 2 cm). Regular monitoring and assessment by a healthcare professional are important to determine if any intervention is needed.