Double retroaortic left renal veins as a possible cause of pelvic congestion syndrome: imaging findings in two patients.

Pelvic congestion syndrome is characterized by chronic pelvic pain and varicose veins around the uterus and ovaries. We report two cases of double retroaortic left renal vein, associated with left-sided pelvic congestion syndrome, diagnosed by CT and confirmed by clinical findings and colour Doppler ultrasound. Double retroaortic left renal veins may be a contributing factor for the development of left pelvic congestion syndrome. This is the first report of double retroaortic left renal vein and associated pelvic congestion syndrome.