ABSTRACT
Background: Variation in renal arteries are very common but bilateral variation is rare and is clinically importantfor urologist especially during the renal transplantation. Generally main renal artery divides into anterior andposterior branches just before entering the hilum of kidney, but sometimes two or more polar arteries; prehilarbranching and segmental arteries arise from main renal artery .Renal artery variations are often seen and aregenerally categorized into presence of accessory or aberrant renal arteries, polar arteries and prehilar branches.Prehilar multiple branching of main renal artery variation is frequently seen.Materials and Method: The present study was conducted in 80 kidneys from 40 cadavers during the routinedissection in the Department of Anatomy Maharishi Markandeshwar Medical College and Muzaffarnagar MedicalCollege .Out of 80 kidneys studied bilateral prehilar branching of renal arteries from the main renal artery wereobserved in 5 kidneys (6.5%).Conclusion: Different arterial branching patterns was observed in five cases in which prehilar branches originateddirectly from main renal artery, entering the upper pole of kidney. Knowledge of such variation is important forradiologists, anatomists and urologists while performing renal transplantation, laparoscopic renal surgeries,nephrectomies, and other renal surgeries and diagnosis.
ABSTRACT
Background: Length of renal artery is an important morphological parameter while performing surgeries in renalarea. The present study was conducted to evaluate variations in length of renal artery.Materials and Methods: The study was conducted in the department of anatomy and department of radiology ofKing George’s Medical University, Lucknow. 53 subjects (106 renal arteries), undergoing 64-slice CT angiographyfor different indications were included in the study group. The angiographic images of all the subjects in abdominalregion were analyzed for renal arteries and their length was measured utilizing computerized tools.Results: The length of main renal artery varied from 8.5mm to 54.8mm on the right side. On the left side minimumlength was 7.7mm and maximum length was 48.8mm. The average length of renal artery was 30.5±10.4 mm on theright side and 26.91±10.0 mm on the left side. There was great variation in the length of renal artery due tovariation in site of ramification.Conclusion: The variation of renal artery length is critically important for maintaining vascularity of kidney aftersurgery