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J Neurol Neurosurg Psychiatry 68:116-117 doi:10.1136/jnnp.68.1.116
  • Letters to the editor

Hypertrophic atlantoaxial ligaments: an unusual cause of compression of the upper spinal cord

  1. ALEJANDRA TERESA RABADAN
  1. Department of Neurosurgery, Instituto de Investigaciones Medicas “Alfredo Lanari”, Facultad de Medicina, Universidad de Buenos Aires, and Equipo de Neurocirugía de Buenos Aires, Argentina
  2. Department of Pathology, Clinica Bazterrica, Buenos Aires, and Equipo de Neurocirugía de Buenos Aires, Argentina
  1. Dr Alejandra T Rabadan, Billinghurst 1976 PB, 1425 Buenos Aires, Argentina. Telephone 0054 1 902 4417;fax 0054 1 903 8928;email rabadan{at}movi.com.ar
  1. GUSTAVO SEVLEVER
  1. Department of Neurosurgery, Instituto de Investigaciones Medicas “Alfredo Lanari”, Facultad de Medicina, Universidad de Buenos Aires, and Equipo de Neurocirugía de Buenos Aires, Argentina
  2. Department of Pathology, Clinica Bazterrica, Buenos Aires, and Equipo de Neurocirugía de Buenos Aires, Argentina
  1. Dr Alejandra T Rabadan, Billinghurst 1976 PB, 1425 Buenos Aires, Argentina. Telephone 0054 1 902 4417;fax 0054 1 903 8928;email rabadan{at}movi.com.ar

    The craniovertebral junction can be affected by several pseudotumorous masses extradurally located, such as rheumatoid panus, hypertrophic non-union of odontoid fracture, post-traumatic cicatrix, synovial cysts, tumorous calcium pyrophosphate dihydrate crystal deposition, tophaceous gout, calcification of the posterior longitudinal ligament, synovial disease-like pigmented villonodular synovitis, and synovial chondromatosis.1-5 Hypertrophy of the atlantoaxial ligaments as a consequence of degenerative disease was recently recognised as an individual …