14 May 2025
: Case report 
Novel Approach to Retro-Odontoid Pseudotumor Resection without Atlantoaxial Dislocation
Challenging differential diagnosis, Unusual setting of medical care, Rare disease
Jia Shao ABCDEFG 1, Yan Zheng Gao ABCDF 1*, Kun Gao ABCD 1, Ke Zheng Mao BDF 1, Xiu Ru Zhang BCD 1DOI: 10.12659/AJCR.946611
Am J Case Rep 2025; 26:e946611
Figure 2 (A, B) The mass was resected via the lateral side of the spinal cord using a curette and clamp. The removed mass was composed of cartilaginous tissue. (C) Postoperative X-ray shows C1 lateral mass screw, C2 pedicle screw and rod fixation, and C3–C7 laminoplasty with centerpiece fixation. (D) Postoperative sagittal reconstructive computed tomography scan shows the bone graft in the lateral atlantoaxial joint. (E) Postoperative T2-weighted magnetic resonance imaging (MRI) shows complete resection of the pseudotumor and no compression of the spinal cord. (F) No tumor recurrence is shown at 1-year follow-up T2-weighted MRI.