case_images: PMC10435846_01
case_images: Sagittal and axial MRI revealed that the cauda equina was thickened, and enhanced MRI revealed that the cauda equina was significantly enhanced (at the white arrow). MRI, magnetic resonance imaging.
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case_images: fig1
case_images: Lumbosacral MRI showed abnormal thickening of the cauda equina nerve in the spinal canal at the L5-S2 level (Figure 1), and the shape and location of the masses were relatively rare.
case_images: PET/CT indicating that the cauda equina in the spinal canal is thickened. SUVmax (Standardized Uptake Value): 2.7. PET/CT, positron emission tomography/computed tomography.
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case_images: PMC10435846_01_fneur-14-1195664-g002.jpg
case_images: fig2
case_images: PET/CT showed that the cauda equina in the spinal canal was thickened, and multiple linear radioactive concentrations were present (Figure 2).
case_images: (A) The cauda equina nerve is surrounded by tumors, yellow-white, soft, and rich in blood supply. (B) Blunt stripping of the tumor and cauda equina nerve. (C) Sufficient hemostasis after biopsy. (D) Suture of the dura mater.
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case_images: fig3
case_images: After careful hemostasis, they were returned to the spinal processes of the vertebral lamina (Figure 3).
case_images: (A) Hematoxylin-eosin stain (x400) shows tumor cell sheet distribution, moderate atypia, eosinophilic cytoplasm, oval cells, nuclear staining, some visible nucleoli, and no clear necrosis. (B) Ki67 immunohistochemical staining (x400) shows approximately 30% positive rate. (C) NF immunohistochemical staining (x400). (D) NFD Nestin immunohistochemical staining (x400) shows a partial positive rate.
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case_images: PMC10435846_01_fneur-14-1195664-g004.jpg
case_images: fig4
case_images: Pathological examination showed the sheet distribution of cells, moderate atypia, eosinophilic cytoplasm, oval cells, nuclear staining, and some visible nucleoli; however, no clear necrosis was found (Figure 4).