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Washington University Experience | NEOPLASMS (GLIAL) | Pleomorphic Xanthoastrocytoma (PXA) | 13A4 PXA (Case 13) H&E 40X 4
However, this tumor clearly demonstrates several unusual features which are atypical for a WHO Grade 2 PXA including the presence of significant mitotic activity, scattered atypical mitoses, palisading necrosis and endothelial proliferation
