The authors report a case of progressive foramen magnum syndrome due to deposits of calcium pyrophosphate dihydrate crystals, which caused reactive hypertrophy in the posterior longitudinal ligament at C-1 and in the transverse ligament of the atlas in an 84-year-old woman. This is the first reported case of symptomatic pseudogout in this anatomic location. Rapid neurological recovery followed transoral decompression of the cervicomedullary junction.
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Ciricillo et al. (1989) studied this question.
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