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Washington University Experience | NEOPLASMS - CRANIAL AND PARASPINAL NERVEs | Malignant Peripheral Nerve Sheath Tumor (MPNST) | 17B MPNST, low grade (Case 17) S-100 1.jpg
By immunohistochemistry, the tumor cells show widespread S-100 positivity in both the pauci- and hypercellular areas, although there are more negative tumor cells in the latter.
