Finally, we examined transcriptomic data of 225 mature T-cell lymphomas from the TENOMIC database29–35, including 76 cases of PTCL-NOS and 100 cases of angioimmunoblastic T-cell lymphoma (AITL) as well as 19 Natural killer cell (NK)/T-cell lymphomas, 11 hepatosplenic T-cell lymphomas and 19 ALK-negative anaplastic T-cell lymphomas (ALK-ALCL). This evidence concerns the gene ALK and mature T-cell and NK-cell non-Hodgkin lymphoma.