Variable expression and intensity of CD30 have been found in T‐cell lymphomas, like PTCL, cutaneous T‐cell lymphoma (CTCL), and extranodal NK‐T‐cell lym [62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72]. This evidence concerns the gene TNFRSF8 and mature T-cell and NK-cell non-Hodgkin lymphoma.