MGMT and glioblastoma: The aim of this study was to reevaluate cases of GBM, reported as per the guidelines of the WHO 2016 classification of CNS tumors as NOS, and establish their survival pattern based on clinical and neuroradiologic features and their O‐6‐methylguanine‐DNA methyltransferase (MGMT) mutational status based on the new guidelines.