GBM has been characterized in the past by members of the TCGA network [4–7, 12, 13] and analyses have yielded novel results such as the correlation between GBM subtypes and expression of PDGFRA, IDH1, EGFR and NF1 [12] and the identification of the CpG methylator phenotype [5]. Here, EGFR is linked to glioblastoma.