Ultimately, DNA methylation profiling performed at the NIH/NCI showed a match to diffuse pediatric‐type high‐grade glioma (pedHGG), RTK1 subtype, subclass B, corresponding to the WHO entity of diffuse pediatric‐type high‐grade glioma, H3‐wildtype and IDH‐wildtype. This evidence concerns the gene IDH1 and glioma.