PMC3671531_01
Coronal MRI of the lesion.
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fig1
Pelvic MRI was taken for the possible lesion compressing the sciatic nerve which displayed the noncontrast enhancing mass on the sciatic nerve at the sciaitc notch section (Figure 1).
Intraoperative photograph of the lesion. Clamp shows sciatic nerve.
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fig2
The soft tissue mass on the sciatic nerve was seen and removed from the nerve sheath (Figure 2).
Microscopic photograph of the lesion reveals ancient form schwannoma. Hyaline degeneration and edema on the ground. Undulant and hypocellular Schwann cells are placed as clusters.
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fig3
The pathological examination result was consistent with the diagnosis of schwannoma (Figure 3).