“…Merklin and Michels 5 classified the ARA based on their origin as vessels arising from the abdominal aorta, the main renal artery, or other arteries such as the external iliac, lumbar, spermatic, ovarian, inferior mesenteric, superior suprarenal, inferior phrenic, right colic, subcostal, splenic arteries, and thoracic aorta. 6 The most common origin of the ARA is the abdominal aorta (Figures 1 to 3). Accessory renal arteries may be observed either unilaterally (Figure 1) or bilaterally (Figure 2) and a different number of them can be present in an individual (most commonly 1, 2, or more).…”