Presentation
Neck pain and left upper limb numbness for four years. The patient does not recall any significant trauma.
Patient Data
Complete separation of odontoid process from the body of C2 without osseous continuity.
Anterior atlantoaxial subluxation is noted with substantial narrowing of the spinal canal at this level.
Complete separation of odontoid process from the body of C2 without osseous continuity.
Marked stenosis of the spinal canal at the craniocervical junction with cord compression and myelomalacic changes (evident by T2 high signal in the spinal cord).
Degenerative changes in the rest of the cervical spine are also noted.
Case Discussion
Based on the imaging features the imaging differentials are os odontoideum and old odontoid fracture (type 2) with secondary anterior atlantoaxial subluxation and resultant craniocervical junction stenosis. Severe cord flattening with high T2 signal reflecting myelomalacia.
Unable to process the form. Check for errors and try again.