PMC8168694_01
(a) T2-weighted MRI lumbar spine sagittal and axial views demonstrating severe central lumbar stenosis at L4/5, with Grade 1 anterolisthesis of L4 on L5. (b) left temporal and left cerebellar intraparenchymal hematomas with obstructive hydrocephalus, noted on postoperative day 3.
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F1
The lumbar MRI demonstrated significant L4-L5 central/bilateral neuroforaminal stenosis with Grade 1 spondylolisthesis [Figure 1a]. A brain CT demonstrated a large left temporal ICH and a large left cerebellar hemorrhage with accompanying obstructive hydrocephalus [Figure 1b].
PMC8168694_02
(a) T2-weighted MRI lumbar spine sagittal and axial views demonstrating right L3-4 foraminal stenosis and Grade I anterolisthesis of L4 on L5. (b) right frontal intraparenchymal hematoma noted on immediate postoperative CTH.
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F2
The lumbar MRI now showed new right L3-4 foraminal stenosis with Grade I spondylolisthesis at the L4-L5 level [Figure 2a]. A postoperative brain CT demonstrated a 17 cc right frontal ICH [Figure 2b], which was managed conservatively.