In fact, PTCL‐GATA3 has an exacerbated DNA mutation rate, chromosomal translocations, and copy number alterations compared with PTCL‐Tfh, AITL, PTCL‐TBX21, and ALK+ ALCL (Nakagawa et al, 2009; Heavican et al, 2019; Watatani et al, 2019). This evidence concerns the gene ALK and anaplastic large cell lymphoma.