IDH1 and astrocytoma (excluding glioblastoma): Using bulk‐sample correlations across tumors between bulk TMEM106A expression and CIBERSORT‐LM22 inferred immune fractions (Table 2), we observed small‐to‐moderate positive associations with M1 and M2 macrophage signatures across IDH‐wildtype, IDH‐mutant astrocytoma, and oligodendroglioma in TCGA and CGGA (Spearman ρ ≈ 0.266–0.362).