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Washington University Experience | NEOPLASMS (GLIAL) | Ependymoma - Microscopic | 9D Ependymoma, anaplastic (Case 9) MIB 1

MIB-1 (Ki-67) proliferative index is increased up to 11.8%. Comment: Immunohistochemical staining for EMA shows dot-like cytoplasmic positivity within the tumor. Based on histomorphological features and immunohistochemical staining profile, this neoplasm is most consistent with an ependymoma, WHO grade 3.

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