Fig. 4

Preoperative and postoperative MR images of a 48-year-old male patient who complained of right upper extremity numbness and weakness. A, B, and C: The preoperative MRI showed that obvious intensified signals of the dumbbell tumor at the C7-T1 level, and it grew toward the right. D, E, and F: The postoperative enhanced MRI showed the total removal of the tumor