An Embryological Correlation with the Incidence of Retro Aortic Left Renal Vein

A knowledge of the variations of renal vascular anatomy has importance in exploration and treatment of renal trauma, renal transplantation, renal artery embolization, angioplasty or vascular reconstruction for congenital and acquired lesions, surgery for an abdominal aortic aneurysm and conservative radical renal surgery. The study was conducted on 86 adult cadavers during routine dissection at various medical colleges. Various morphometrical datas were collected regarding the length, breadth, caliber of retro aortic left renal vein and its draining pattern. In our study the incidence was about 2.4 %. The retro-aortic left renal vein is a malformation characterized by the presence of vessels that drain the left renal blood upto inferior vena cava crossing behind the aorta.