BACKGROUND: Periodontoid synovial cysts are rare lesions which may produce symptomatic cervico-medullary compression. METHOD: We report such a patient, whose progressive neurological deterioration required surgical treatment by transoral odontoidectomy and decompression. RESULTS: The diagnostic and theraputic interventions are described, including a lumbar puncture which precipitated a transient loss of consciousness and respiratory arrest. Surgery achieved clinical improvement, without complications or need for operative stablization. Detailed neuropathology is presented, as well as a literature review. CONCLUSION: Appropriate neuroradiological assessment is required in patients with suspected cervico-medullary compression, and symptomatic periodontoid synovial cysts may respond well to transoral surgical decompression.
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Kaufmann et al. (1996) studied this question.
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