Bone marrow oedema is observed in the clivus, C1, and C2 vertebrae, along with surrounding ligaments and soft tissues. The affected areas exhibit low signal intensity on T1-weighted imaging and high signal intensity on T2-weighted imaging and STIR sequences.
A fluid collection within the spinal canal is located in the anterior epidural space, measuring approximately 6 x 31 mm (anteroposterior x craniocaudal dimensions). The fluid shows diffusion restriction (high signal on DWI and low signal on ADC) with peripheral enhancement after contrast administration. Compression of the cervical spinal cord and associated spinal cord oedema at the corresponding level are noted.
Degenerative changes in the cervical vertebrae and intervertebral discs are also noted.