Os odontoideum in a patient with cervical vertigo: A case report

Cervical vertebral anomalies are often associated with malformations or tra umas, they may be completely asymptomatic and represent an occasional findi ng in vertigo or can cause severe neurologic complications (ie, compression of the upper cervical spine with myelopathy, epilepsy, or respiratory fail ure). This clinical case is a patient who came to us for observation for a peripheral harmonic vestibular syndrome, and in whom a malformation of the cervical vertebral joint (os odontoideum) was occasionally found on magneti c resonance imaging.