What is the best method of evaluation for craniovertebral anomalies?
Dynamic MRI in flexion, extension, and neutral positions. Additional options include time-of-flight studies (detect vascular pathology) or phase-contrast CSF flow studies (aid in patient management and prognosis).
Annotated frontal and lateral views demonstrating the presence of an ossicle (green arrows) that lacks continuity with C2, consistent with os odontoideum.