De Pádua Covas Lage and colleagues [116] stratified nPTCL cases into anaplastic large cell lymphoma (ALCL) (n = 34) and non‐ALCL (nALCL) (n = 25), in which neither subgroup showed a significant relationship between TET2 mutation and OS (HR [95% CI] = 1.01 [0.32–3.14], p = 0.99, and HR [95% CI] = 0.99 [0.40–2.47], p = 0.75, respectively) (Table 2). The gene discussed is TET2; the disease is anaplastic large cell lymphoma.