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May-Thurner Syndrome: An often-missed cause of chronic pelvic pain.

May-Thurner syndrome (MTS), or iliac vein compression syndrome, is a pelvic condition that involves compression of the iliac veins resulting in endothelial damage. This condition is typically asymptomatic and often missed in primary care. As progression occurs over time, symptoms related to venous hypertension may be present including acute extremity pain and swelling, pelvic pain, venous claudication, deep venous thrombosis, or chronic development of venous insufficiency. A case report is provided to enhance primary health care providers' knowledge of MTS and promote early detection and recognition to enhance positive and expedited outcomes.