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Case Reports
Pseudonotch of the atlas vertebra simulating fracture with computed tomographic diagnosis. A case report.
- P Lander, D Gardner, and A Hadjipavlou.
- Department of Diagnostic Radiology, McGill University, Montreal, Quebec.
- Orthop Rev. 1991 Jul 1; 20 (7): 614-6.
AbstractPseudonotch of the atlas represents a normal variation of the atlas related to a notched protuberance of the medial surface of its lateral masses. A case is presented in which cervical spine roentgenography revealed a prominent pseudonotch that mimicked a fracture of the lateral masses of the atlas. Minimal rotation of C-1 on C-2 was present without apophyseal joint subluxation. Computed tomography imaging provided an accurate diagnosis.
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