ABSTRACT
Presence of supernumerary renal artery (accessory renal artery) is the most common anatomical variation of renal arterial systemand is seen with varying frequencies among different ethnic and racial groups. Prior knowledge of these variations is of great surgical importance as it influences the selection of donor kidney, partial nephrectomy and other urological procedures. Aim of the present study was to observe the prevalence of accessory renal artery (ARA) and their distribution pattern with relation to gender and side in adultNorth Indian population. One hundred normal healthy adult (16 males and 84 females; mean age of 43.5±10.42 years) who were prospective voluntary kidney donors underwent MDCTand CTangiography evaluation for the presence of accessory renal artery. Accessory renal artery (ARA) was present in 25.0% kidneys. The prevalence of accessory renal arteries in males and females was similar (25.0%) respectively. On the right side the prevalence of accessory renal artery was 26.0% and on left side it was 24.0%. In males 25% kidneys had unilateral single accessory renal artery. In females 14.3% of left kidneys and 16.7% of right kidneys had a single unilateral accessory renal artery. In 9.5% femalesubjects bilateral accessory renal arteries were present in the kidneys. The prevalence of accessory renal artery in our North Indian population was 25.0%, which is similar to studies from other Asian countries. The distribution pattern was not affected by gender and side. These findings need further validation in a larger cohort of subjects.
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
During routine dissection of an old male cadaver, in the Department of Anatomy, Pinnamaneni Siddhartha Institute of Medical science, Chinoutpalli, Andhra Pradesh, India, presence of right superior aberrant renal artery was noted. It took origin from the lateral aspect of abdominal aorta, below the origin of superior mesenteric artery and above the right main renal artery .The right superior renal artery run towards upper pole of the right kidney. Proper knowledge of variations of the arteries supplying the kidney is essential not only to the anatomists but also to the vascular surgeons, urologists, nephrologists and radiologists. Such vascular variations as noted in the present study have been explained in light of embryogenic development.