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Washington University Experience | NEOPLASMS (GLIAL) | Oligodendroglioma - IDH1 mutant, del 1p19q - Grade 2 | 3B4 Oligodendroglioma (Case 3) H&E 13

3B4,5 Vessels are predominantly thin-walled and show 120 degree angle branching, so-called 'chicken wire' vasculature with prominent hyalinization. In this image, however, incipient endothelial hyperplasia is seen in some of these vessels, but they remain mostly single layered.

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