Successful repeat carotid artery replacement using vascular grafts in a case with recurrent dedifferentiated liposarcoma: a case report.

Dedifferentiated liposarcoma is prone to local recurrence, and complete resection remains the treatment of choice. We report a 70-year-old man who underwent carotid artery replacement with vascular grafts on two occasions for recurrent disease. A recurrent tumor invading the right common carotid and subclavian arteries was resected with vascular graft replacement. After 2 years and 7 months, recurrence developed around the carotid artery anastomosis. En bloc tumor resection with repeat carotid artery replacement using a prosthetic vascular graft was successfully performed. The patient was discharged on postoperative Day 9 without postoperative neurological deficits. Postoperative radiotherapy was administered following both operations. He remains free of recurrence more than 2 years after the most recent surgery. This case suggests that repeat carotid artery replacement using a vascular graft may be a feasible treatment option for selected patients with recurrent dedifferentiated liposarcoma.