A 49-year-old male patient who had been scheduled for a surgery for gastric cancer underwent preoperative infusion therapy. Up to 3,0 liters of liquid was introduced into the right cubital vein. The following day, he felt a dragging pain in the right shoulder. Objectively: on the inner surface of the shoulder there is a longitudinal hyperemic zone, edema of skin, a tender cord. What complication occurred in the patient?