Accessory renal arteries and its clinical significance

Author: 
Khanwalkar P.G and Bhaskar B.Reddy

The relatively common variations in the blood supply to the kidneys reflect the manner in which the blood supply continually changed during embryonic and early fetal life. A single renal artery to each kidney is present in about 75% of the people. About 25% of adult kidneys have two to four renal arteries. The origin of main renal arteries from the aorta is between the upper margin of L1 and lower margin of L2 vertebra in 98% of the patients. Accessory (super numerary) renal arteries usually arise from the aorta superior or inferior to the main renal artery and follow it to the hilum. An accessory renal artery to the inferior pole may cross anterior to the ureter and obstruct it causing Hydronephrosis.
The aim of this study was to determine the location of origins of renal arteries and the variation rates of renal arteries in cadavers. During the routine dissection for a period of two years, on a total of twelve cadavers, accessory renal arteries are found in three cadavers and accessory segmental arteries are found in one cadaver.

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DOI: 
http://dx.doi.org/10.24327/ijcar.2018.10852.1860
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