RHOJ and mature T-cell and NK-cell non-Hodgkin lymphoma: Six of 11 large cell PTCL-TFH patients (55%) showed ≥5000 U/ml sIL2R, which was significantly higher than that observed in small cell PTCL-NOS (13%) and F-TCL (0%) (p = 0.008, p = 0.039, respectively).