PMC7451188_01
Preoperative lumbosacral magnetic resonance imaging T2-weighted sagittal (a) and axial (b) images demonstrate a median- paramedian right mass at L5 level, occupying more than 50% of spinal canal.
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F1
Intraoperative images showing exposure of the lesion after dural opening. (a) A good exposure showed the relationships between the neoplasia and the roots of the cauda equina, whose limits did not appear completely distinct. (b) A subtotal excision of the neoplasm has been achieved, with radicular sparing (c).
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F2
An L4-L5 laminectomy was performed, and only subtotal resection of tumor was feasible as multiple leptomeningeal metastases were densely adherent to/and infiltrated the multiple nerve roots of the cauda equina [Figure 2a-c].
Postoperative lumbosacral magnetic resonance imaging T2-weighted sagittal (a) and axial (b and c) images showed the results of laminectomy and radicular decompression, with a subtotal removal of the lesion.
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F3
One-month later, the lumbosacral magnetic resonance imaging confirmed adequate spinal canal decompression at the L4-L5 level (e.g., subtotal removal) [Figure 3a-c].