4,5 In our analysis of 240 IDHmut, TERTwt, 1p/19q-intact astrocytomas in The Cancer Genome Atlas (TCGA) via GlioVis,6 only four (1.7%) were wild-type for both TP53 and ATRX. The gene discussed is ATRX; the disease is astrocytoma (excluding glioblastoma).