case_images: PMC7755489_01
case_images: MRI axial showing right sciatic nerve tumor, 4 cm from the skin.
case_images: CRINM2020-8822866.001.jpg
case_images: PMC7755489_01_CRINM2020-8822866.001.jpg
case_images: fig1
case_images: An MRI of the right thigh showed a tumor along the right sciatic nerve, 3 cm in size (Figure 1).
case_images: (a) Intraoperative ultrasound localizing tumor. (b) Planned incision along the right posterior thigh.
case_images: CRINM2020-8822866.002.jpg
case_images: PMC7755489_01_CRINM2020-8822866.002.jpg
case_images: fig2
case_images: During the procedure, the patient was placed prone, and an intraoperative ultrasound confirmed that the tumor was 18 cm from the popliteal fossa (Figure 2).
case_images: Gross specimen of schwannoma.
case_images: CRINM2020-8822866.003.jpg
case_images: PMC7755489_01_CRINM2020-8822866.003.jpg
case_images: fig3
case_images: A section of tumor was sent for pathology, and the tumor was histologically confirmed to be a schwannoma (Figures 3 and 4).
case_images: (a) H&E high magnification (X200) of Antoni A area with Verocay bodies formation. (b) H&E low magnification (X40) of biphasic spindle cell lesion with cellular Antoni A areas and numerous Verocay bodies formation on the right, along with many hyalinized vessels and fresh hemorrhage, characteristic of schwannoma. Hypocellular area with looser stroma or Antoni B pattern is on the left. Pigment laden macrophages are present around vessels at the bottom of the image, representing evidence of old microbleed.
case_images: CRINM2020-8822866.004.jpg
case_images: PMC7755489_01_CRINM2020-8822866.004.jpg
case_images: fig4
case_images: A section of tumor was sent for pathology, and the tumor was histologically confirmed to be a schwannoma (Figures 3 and 4).
case_images: (a) View of the surgical field with tumor along the sciatic nerve. (b) Tumor excised with sciatic nerve left intact (yellow arrow).
case_images: CRINM2020-8822866.005.jpg
case_images: PMC7755489_01_CRINM2020-8822866.005.jpg
case_images: fig5
case_images: Debulking was avascular, and the tumor was excised from the nerve, with minimal fascicle loss (Figure 5).