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Washington University Experience | NEOPLASMS - CRANIAL AND PARASPINAL NERVEs | Malignant Peripheral Nerve Sheath Tumor (MPNST) | 11D3 MPNST (Case 11) EM 013 - Copy
Ultrastructural examination of the tumor shows frequent cells with prominent basement membranes. Neoplastic cells do not show focal desmosomes, melanosomes or dense core vesicles.