Sagittal T1-WIs (right) of the cervical spine demonstrate replacement of the normal
fatty marrow signal of the odontoid. T2-WI (left) is normal.
Axial and sagittal T1-WIs after fat saturation and gadolinium administration reveal
abnormal enhancement of the dens. Note the soft tissue component with
enhancement of the transverse ligaments. There is no significant epidural component.
Key words: mri infection inflammation
(Intravenous drug abuse)