I (Geo) recently learned of an acquaintance who has developed venous thoracic outlet syndrome (VTOS), also termed “effort thrombosis” or more formally, Paget-Schroetter syndrome. This is thrombosis of the axilosubclavian vein where the vein passes by the junction of the clavicle and first rib. VTOS is rare, and is seen in athletes, for example, baseball pitchers, probably due to strain on the thoracic outlet region. Treatment includes catheter-directed thrombolysis. I’ve attached a concise review article that describes the etiology, symptoms, treatment, and prognosis of VTOS. Please click on the reference below to learn about this fascinating disorder.