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Updated: Aug 20, 2026

Point-Of-Care Ultrasound Screening for Proximal Lower Extremity Deep Venous Thrombosis
Published on: February 10, 2023
Unilateral lower extremity edema in May-Thurner syndrome
1Department of Family Practice, Naval Hospital Jacksonville NAS, Jacksonville, FL 32214, USA.
Abstract:
Deep venous thrombosis (DVT) tops the differential diagnosis list for unilateral lower extremity edema, but another entity could imitate or even cause a DVT. May-Thurner syndrome is caused by compression of the left common iliac vein by the overlying right iliac artery, resulting in impeded venous blood flow from the left lower extremity. The left leg becomes edematous, causing discomfort and concern. Early recognition of May-Thurner could prevent a DVT and provide symptomatic relief.
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