Note lower polar accessory artery to right kidney lying behind ureter. There is also an accessory superior polar on the left side. Anterior view showing retropelvic artery on right side arising from renal, close to aorta. On the left side note the superior polar and the retropelvic artery, both arising from one of the two main renals. Lower, example of fan-like division of retropelvic artery over posterior aspect of pelvis.
Right kidney shows a single accessory artery to lower pole.
Left kidney shows two accessory arteries to lower pole, all from aorta. Lower, posterior view of right kidney showing typical fan-like distribution of retropelvic artery. D.N. The relations of variations in the renal vessels to pyelotomy and nephrectomy. All rights reserved.