Postoperative pain due to an occult spinal infection: A case report

Figure 3 Magnetic resonance imaging scan on day 6 postoperatively. A: Axial T1-TSE-FS-weighted magnetic resonance imaging (MRI) image at the level of L4-L5 showing a fluid collection in both facet joints; B and C: Right-sided and left-sided T1-TSE-weighted sagittal MRI image showing an increase in fluid collections, especially left-sided (blue arrows), and an increase in edema in the bone, facet joint and muscles surrounding the facet joints (light blue arrows); D: T1-TSE-weighted central sagittal MRI image showing an increase in fluid collection (blue arrow), with an increase in air collections (orange arrow).