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FIG 3. High-power view of histopathologic section of gliomatosis cerebri (hematoxylin-eosin with Luxol fast-blue stain, original magnification x200). There are moderately pleomorphic glial cells in a diffusely infiltrating pattern with relative preservation of underlying cytoarchitecture. No evidence of vascular proliferation or necrosis is seen. A small collapsed vascular structure (arrow) is noted.
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