The Symptoms-Varices-Pathophysiology classification of pelvic venous disorders: A report of the American Vein & Lymphatic Society International Working Group on Pelvic Venous Disorders.

[Box: see text] With the support of the American College of Obstetricians and Gynecologists, the American Vein & Lymphatic Society, the American Venous Forum, the Canadian Society of Phlebology, the Cardiovascular and Interventional Radiology Society of Europe, the European Venous Forum, the International Pelvic Pain Society, the International Union of Phlebology, the Korean Society of Interventional Radiology, the Society of Interventional Radiology, and the Society for Vascular Surgery .