Figure 1.

Magnetic resonance imaging (MRI) and computed tomography findings. (a) Cervical sagittal T2-weighted MRI performed in another hospital before intradiscal oxygen–ozone (O₂-O₃) injection shows disc herniation at C5 to C6 (white arrow). (b) Cervical MRI performed before admission reveals an increased soft tissue density along the entire extent of the prevertebral region of the neck with hyperintensity in the spinal cord from C2 to C7 (white arrows). (c, d) Enhanced cervical MRI reveals an extensive spinal epidural abscess extending from C2 to C6 anterior to the spinal cord. Additionally, spinal cord myelopathy is present from C3 to C6 due to anterior compression by the lesion, and a prevertebral abscess with hypointense content and homogeneous enhancement of the wall and septa is present. There is no evidence of an air–fluid level, vertebral erosion, or foreign body (white arrows). (e) Cervical computed tomography shows a prevertebral abscess from C2 from T1 (white arrow). (f) Repeat cervical MRI after drainage shows a significant decrease in the hyperintensity and size of the cervical prevertebral and epidural spaces (white arrows). (g, h) MRI shows hyperintensity in the spinal cord at C4 to C5 after the 2-month and 1-year follow-ups (white arrow).