Manso et al. found similar mutation frequencies in AITL and PTCL-NOS cohorts: RHOA (23.5%), PLCG1 (14.3%), IDH2 (11.2%), and DNMT3A (7.1%), but a lower TET2 mutation rate (23.5%) than in our study [12]. Here, IDH2 is linked to mature T-cell and NK-cell non-Hodgkin lymphoma.