Fig. 5From: Congenital absence of lumbosacral articular facet joint associated with conjoined nerve root: a case reporta MR sagittal images showing disc herniation at L5-S1 intervertebral disc level. b Axial MR T2-weighted images showing the herniated nucleus pulposus (HNP, left panel), which migrated cranially (b, right panel)Back to article page