PMC7827464_01
(a) Axial magnetic resonance imaging (MRI) image showing left paracentral disc extrusion at L4-5 and significant critical central canal stenosis. (b) Sagittal MRI image showing large disc extrusion, L4-5 and severe canal stenosis.
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F1
The MRI again confirmed the large L4-L5 extruded disc herniation contributing to marked thecal sac compression/stenosis seen on the original study [Figure 1].