IDH1 and glioma: Genomic features of gliomas in humans also have been associated with certain magnetic resonance imaging (MRI) biomarkers such as the T2‐weighted (T2W)—fluid‐attenuated inversion recovery (FLAIR) mismatch (T2FMM) sign, which has high to perfect specificity and moderate to low sensitivity to predict IDH1‐mutant, 1p/19q non‐codeleted low‐grade astrocytomas (LGA).8, 9, 10, 11, 12, 13