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 3 Schematic diagram for removal of the mass behind the dens. (A) The posterior view of the atlas and axis. The purple bone is the atlas, and the yellow bone is the axis. The area between the 2 white dotted lines represents the scope of the atlas laminectomy. (B) An oblique view of the atlas and axis after atlas laminectomy. The red sphere represents the retro-odontoid pseudotumor, the yellow cylinder represents the spinal cord, and the white arrow indicates the operative pathway.