What are enlarged blood vessels on the pelvic area in a woman?

Pelvic congestion syndrome (PCS) is a condition with enlarged and twisted blood vessels of the ovaries causing persistent and often times severe pelvic pain with other associated urinary and gastrointestinal symptoms as well as varicose veins of the vulva as the result of poor venous return of blood from the female gonads and surrounding structures through which this blood needs to pass.