PTCL‐NOS expressing the AITL surface antigen markers PD‐1, CD10, CXCL13, and BCL6 were excluded in this analysis and further analysis of PTCL‐NOS cases and other types of PTCL may precisely elucidate the significance of the TERT expression in PTCL. This evidence concerns the gene CXCL13 and mature T-cell and NK-cell non-Hodgkin lymphoma.