Duplication of the gonadal veins, with purpose of a case

Abstract

Varicocele is a dilatation of the pampiniform plexus, one set of veins that drains the testicle. This pathology has been related to male infertility and it does not discriminate ages. The Varicocele happens due to insufficient drainage of blood from the testicles, which takes to blood blockage or reflux of blood back into the veins of pampiniform plexus and increase in the volume of the veins. The study relates the varicocele with duplication of left gonadal veins that drains into the left renal vein. Gonadal veins, also known as testicular veins in men and ovarian veins in women, can present anomalies. Normally, in a person only one vein drain into left renal vein, but in this case of anomaly it differs by double veins and it drains directly into left renal vein. These anomalies may be due to structural factors, functional factors, metabolic factors or dysplasia. It was confirmed that in people who have anomalies of left gonadal veins, there may be a greater risk of having varicocele, due to the distance that runs blood to the renal vein, pressure to push the blood, valves defects, valvular insufficiency, vein thickness or blood travel angle as well, where there is a decrease in pressure in the lower areas of the system, favoring the appearance of tortuosity of the pampiniform plexus, that are filled to increase pressure and endure the force of gravity.