“…The vein is subject to compression by hypertrophied anterior scalene or subclavius muscles, anatomic abnormalities such as cervical ribs, or demanding activity such as strenuous exercise (weight lifting, rowing) or hyperabduction and external rotation of the arm (baseball pitching). 1,2,8,9 The most common symptoms associated with UEDVT include arm and hand edema as well as discomfort and heaviness. On examination, distended veins, cyanosis, and palpable superficial veins can be present.…”