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Washington University Experience | NEOPLASMS (GLIAL) | Oligodendroglioma - IDH1 mutant, del 1p19q - Grade 3 | 9A2 Oligodendroglioma, anaplastic (Case 9) H&E 1.jpg
The intraoperative smear in this case shows proliferative vessels. Sections of the resected tumor show an infiltrative oligodendroglial neoplasm with necrosis and prominent multifocal microvascular proliferation. The majority of the tumor has classical features of an oligodendroglioma with perinuclear clearing, perineuronal satellites. Other areas of the tumor are more densely cellular, more pleomorphism and sheeting with up to 12 mitoses/10HPF.
