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Atlas hypoplasia associated with non-traumatic retro-odontoid mass
Kazufumi Sato1, Toshihiko Kubota, Hiroaki Takeuchi
1Division of Neurosurgery, Department of Sensory & Locomotor Medicine, Faculty of Medical Science, University of Fukui, Japan. ksato@fmsrsa.fukui-med.ac.jp
Abstract:
A 38-year-old man presented with progressive cervical myelopathy due to atlas hypoplasia associated with non-traumatic retro-odontoid mass. The neuroimaging findings suggested hypertrophy of the transverse ligament of the atlas. No histological confirmation of the retro-odontoid mass was obtained. Clinical manifestations improved after posterior decompression. Decompressive laminectomy of the atlas with or without fusion can achieve a good outcome in such cases.
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