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Washington University Experience | NEOPLASMS (GLIAL) | Glioblastoma, primitive neuronal component | 4A4 GBM with PNET features (Case 4) H&E 2.jpg
4A4,5 In the primitive areas mitotic figures, often atypical, are abundant (focally, as many as 30 are identified in a single 40x objective field), and apoptotic bodies are widespread.