English

Abstract

The renal vasculature was always a subject of variations both in the number and pattern of portal of entry into kidney and Perihilar placement of the artery, vein and pelvis. Good anatomical insight is an essential prerequisite besides the surgical expertise. The cadaveric dissection at Shadan Institute of Medical Sciences, Teaching Hospital and Research Centre, revealed superior / upper polar artery arising from the lateral aspect of the aorta just proximal to the origin of Main Renal Artery (MRA). The main renal artery and the accessory renal artery had almost a common point of origin. The peri-hilar segmentation of the main renal artery was a fork like pattern. One of the segmental arteries was long and had its portal of entry into the kidney by perforating the capsule of the anterior substance of the kidney. The remaining segmental branches had their portal of entry through the hilum. The lower two segmental branches were placed anterior to the main renal vein causing altered hilar anatomy. A thorough knowledge of the frequently to the rarely occurring wide range of variations of renal vasculature has significance in exploration and treatment of renal trauma, renal transplantation, renal artery embolization, surgery for abdominal aortic aneurysm and conservative or radical renal surgery. Such a rare variation including the combination of extra renal peri-hilar segmentation of MRA with superior polar artery is worthy of concern to the urologists harvesting kidneys from the live donors for performing transplantation procedures, partial nephrectomies for the hilar tumors and for Radiologists during interpretation of the