May-thurner syndrome complicating phlegmasia cerulea dolens

May-Thurner syndrome (also known as Cockett's syndrome or Iliac vein compression syndrome) is a venous anomaly featuring mechanical compression of the left common iliac vein by the right common iliac artery, with increased risk of development of deep vein thrombosis of the left lower limb. Phlegmasia caerulea dolens usually occurs, follow by massive venous thrombosis. May-Thurner syndrome as a cause of phlegmasia cerulea dolens is rare. We report a case of May-Thurner syndrome with deep vein thrombosis and rapid development of phlegmasia caerulea dolens, successfully treated by emergency thrombectomy, endovascular angioplasty, stenting, and systemic anticoagulation.