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Excerpt
In the article by O'Connell et al.2 concerning nuchal fibrocartilagenous pseudotumor, the authors were able to find only a single report in the literature describing a similar lesion.
In 1991, Crockard et al.1 described five elderly patients, each with a mass resembling degenerating intervertebral disc posterior to the odontoid, which compressed the upper spinal cord. These authors speculated that the mass was due to degeneration of the ligaments responsible for atlantoaxial stability. Because of their location, these masses produced significant neurologic disability. In addition to the difference in location in the neck, these cases, unlike those of O'Connell et al.,2 were not preceded by trauma. However, the fundamental process, a fibrocartilagenous pseudotumor resulting from degeneration of nuchal ligaments, appears identical.
