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Washington University Experience | NEOPLASMS - CRANIAL AND PARASPINAL NERVEs | Malignant Peripheral Nerve Sheath Tumor (MPNST) | 2A4 MPNST (Case 2) B1 10X
2A4-7 There are foci of rhabdomyoblastic (strap cells) differentiation; the presence of the latter justifies the term malignant triton tumor. In some areas the mitotic rate is extremely high (eight mitotic figures in a single 40X field). The apoptotic rate is low and there is no geographic (tumoral) necrosis.
