Fig. 3. Intraoperative images of the huge sacrococcygeal mass. A: The tumor was observed (arrow) and total tumor resection following ligation of right internal iliac arteries and anterior release of the mass as well as loop sigmoid colostomy. After S2 laminectomy, the thecal sac was ligated below S2. B: Removal of the chordoma weighing 2,450 grams.
