[9] performed genome‐wide methylation analysis of TET2 mutation‐positive (n = 3) and TET2 mutation‐negative (n = 7) thymic carcinoma samples and described a higher degree of methylation at discrete loci in TET2 mutation‐positive tumors compared to those that were TET2 mutation‐negative. This evidence concerns the gene TET2 and thymic carcinoma.