Abstract
INTRODUCTION AND IMPORTANCE: The thoracic outlet syndrome is characterized by compression of the brachial plexus or subclavian vessels due to anatomical alterations of the thoracic cavity. Vascular presentation is rare and includes thromboembolism and edema in the upper limb, and the diagnosis is often elusive due to its rarity. In this case, we describe a vascular thoracic outlet syndrome presentation whose diagnosis through angiography was achieved after a mechanical thrombectomy. CASE PRESENTATION: We report a 43-year-old female patient with pain in the right upper limb, accompanied by edema and mild violet discoloration, without risk factors for hypercoagulability, with D-dimer levels within normal values. Mechanical thrombectomy with AngioJET was performed via an endovascular approach, with the extraction of multiple clots, confirming the presence of thoracic outlet syndrome as the underlying cause of the current condition. CLINICAL DISCUSSION AND CONCLUSIONS: Venous thoracic outlet syndrome is a challenging entity to diagnose; however, it should be considered in cases of deep vein thrombosis of the subclavian vein and confirmed by angiography after a thrombectomy.