Fig. 4

Illustrates the inspection results of a 49-year-old female with atlantoaxial chordoma. She was treated with transoral chordoma resection of C2. According to a and b, the X-rays have shown bone destruction in the odontoid process of axis, but without any obvious dislocation. Figure c and d represent the sagittal and coronal CT results. These figures further illustrate bone destruction in the odontoid process of C2 and space occupying lesions. MRI results (as shown in e, f and g) reflect the space occupying lesions in the odontoid process of axis. As shown in h, the postoperative X-rays immediately show that odontoid process lesions have been removed