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  • Title: [Retro-odontoid pseudotumor in diffuse idiopathic skeletal hyperostosis].
    Author: Castro-Castro J, Castro-Bouzas D, Pinzón-Millán A, Pastor-Zapata A.
    Journal: Neurocirugia (Astur); 2014; 25(1):25-8. PubMed ID: 23465746.
    Abstract:
    Retro-odontoid pseudotumors are lesions caused by inflammatory granulation or reactive soft tissue hypertrophy from chronic atlantoaxial subluxation. However, one-third of the cases reported in the medical literature did not show atlantoaxial instability clearly. The authors present the case of a 76-year-old man previously diagnosed with diffuse idiopathic skeletal hyperostosis who presented with severe progressive myelopathy. A magnetic resonance imaging of his cervical spine revealed a retro-odontoid predural mass, which caused a severe compression of the cervical spinal cord. The patient underwent a posterior laminectomy of the atlas and an occipitocervical fusion. After surgery, the pseudotumor was considerably smaller and the neurological symptoms improved.
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