PMC6744781_01
Lumbar magnetic resonance imaging demonstrating mild- moderate multilevel degenerative disease in the setting of congenital canal stenosis with significant lateral recess stenosis at L4-5 and a herniated nucleus pulposus at L5-S1.
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F1
He underwent an emergent lumbar magnetic resonance imaging which demonstrated mild-moderate multilevel degenerative spondylosis in the setting of congenital canal stenosis with significant lateral recess stenosis at L4-5 and a centrally herniated nucleus pulposus (HNP) at L5-S1 [Figure 1].
Sequestered herniated disc fragment.
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F2
The patient was noted to have severe stenosis caudal to the S1 lamina intraoperatively, so this was also removed bilaterally and revealed a large sequestered herniated disc fragment [Figure 2] posterior to the S1-S2 disc space [Figure 3] causing severe sacral nerve compression.
Radiograph demonstrating herniated disc fragment posterior to the S1-S2 disc space.
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F3
The patient was noted to have severe stenosis caudal to the S1 lamina intraoperatively, so this was also removed bilaterally and revealed a large sequestered herniated disc fragment [Figure 2] posterior to the S1-S2 disc space [Figure 3] causing severe sacral nerve compression.