Fig. 1From: Factors associated with lumbar disc high-intensity zone (HIZ) on T2-weighted magnetic resonance image: a retrospective study of 3185 discs in 637 patientsA 46-year-old man with low back pain for 9 months. a Sagittal T2-weighted MR image of the lumbar spine shows two HIZs at L3/4 and L4/5 (white arrow). b Axial post-discography CT image shows a grade 4 annular disruption at L3/4. Discography produced concordant painBack to article page