%0 Journal Article
%T Supernumerary Renal Arteries and Their Embryological and Clinical Correlation: A Cadaveric Study from North India
%A Virendra Budhiraja
%A Rakhi Rastogi
%A Vaibhav Anjankar
%A C. S. Ramesh Babu
%A Prabhat Goel
%J ISRN Anatomy
%D 2013
%R 10.5402/2013/405712
%X Background. Classically, each kidney is supplied by a single renal artery originating from abdominal aorta. The present study aimed at its variations and their embryological and clinical correlation. Material and Methods. The formalin-fixed thirty-seven cadavers from north India constituted the material for the study. During routine abdominal dissection conducted for medical undergraduates at the department of anatomy, the kidneys along with their arteries were explored and the morphological variations of renal arteries were noted. Results. We observed supernumerary renal arteries in 23/37 (62.2%) cases (48.6% of aortic origin and 13.5% of renal origin) on the right side and 21/37 (56.8%) cases (45.9% of aortic origin and 10.8% of renal origin) on the left side. Supernumerary renal arteries entered the kidney through hilum, superior pole, and inferior pole. Conclusion. Awareness of variations of renal artery is necessary for surgical management during renal transplantation, repair of abdominal aorta aneurysm, and urological procedures and for angiographic interventions. 1. Introduction Classically, the description of a single renal artery arising from abdominal aorta that supplies the respective kidney [1, 2] occurs in less than 25% of cases [3, 4]. Common variations of renal artery are its variable number and unusual branching pattern [5¨C9]. Variations in renal arteries have been called aberrant, supplementary, and accessory, among other terms. We used the term supernumerary and analyze it in accordance with Merklin classification [10]. We believe that prior knowledge of these possible variations of renal arteries may help the surgeon in planning renal transplantation, repair of abdominal aorta aneurysm, urological procedures, and also for angiographic interventions [11¨C13]. 2. Materials and Methods The formalin-fixed thirty-seven cadavers constituted the material for the study. During routine abdominal dissection conducted for medical undergraduates at the department of anatomy, the kidneys along with their arteries were explored and the morphological variations of renal arteries were noted. During the course of dissection various abdominal viscera were removed and preserved as specimens for teaching purposes. We studied the origin of supernumerary renal arteries in accordance to the nomenclature of Merklin and Michels [10]: (1)supernumerary renal arteries originating from the aorta;(2)supernumerary renal arteries originating from main renal arteries;(3)supernumerary renal arteries that can come from other sources. 3. Results Supernumerary renal
%U http://www.hindawi.com/journals/isrn.anatomy/2013/405712/