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

Figure 1 Magnetic resonance imaging scan done 2 d before the last infiltration, 1. 5 mo preoperatively. A: T2-weighted axial magnetic resonance imaging (MRI) image; B: T2-weighted right-sided sagittal MRI image showing right-sided foraminal lumbar disc herniation at L4-L5 (orange arrows), with compression of the right-sided exiting L4-nerve root; C: T2-weighted left-sided sagittal MRI image showing a slight bulging of the L4-L5 disc, without compression of the exiting nerve root. In (A) and (C) fluid collections can be seen in both facet joints (yellow arrows), without visible signs of edema.