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. 2022 May 27;12:873839. doi: 10.3389/fonc.2022.873839

Figure 2.

Figure 2

A 28-year-old male patient with left frontal oligodendroglioma, WHO grade II, IDH-mutant type. (A–C) MRI axial T2W, T1W, and T2-FLAIR sequences showed clear tumor boundary, no cystic lesion, no hemorrhage, and no obvious edema around the tumor. (D) T1 postcontrast showed no obvious enhancement. (E, F) When b value was 1000, tumor was unrestricted diffusion in DWI and ADC images. (G) HE staining showed moderate increase in cell density, a small amount of nuclear atypia and loose background (×200). (H) IDH1 positive expression (×200).