**1. Introduction**

An ectopic kidney refers to the situation in which developmental arrest of the renal ascent is encountered, leading to the location of this viscus in the pelvic, iliac or abdominal area [1]. Most often, a pelvic kidney is situated opposite to the sacrum bone and below the aortic bifurcation and presents an incomplete rotation [2]. Such cases also present certain modifications with regard to the length and disposition of the ureter and vascular supply: In up to half of these patients, a certain degree of hydronephrosis can be encountered, while the renal arteries can arise from the distal aorta, aortic bifurcation, common or external iliac arteries or even from the inferior mesenteric artery [1,2]. Therefore, its pelvic location makes it susceptible to be invaded by all the tumoral processes of pelvic origin, while the surgical approach can be significantly influenced. The incidence of this anatomical particularity is estimated to be one in 2100 to 3000 cases [3].
