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Washington University Experience | NEOPLASMS (GLIAL) | Oligodendroglioma - Histologically Defined (most del 1p19q) | 6D Oligodendroglioma, anaplastic (Case 6) MIB

By immunohistochemistry, tumor cells show a marked Ki-67 proliferation index. ---- Comment: The morphologic features are consistent with the diagnosis of oligodendroglioma, WHO grade 3. FISH studies showed co-deletions of both 1p and 19q.

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