In cases of Hodgkin lymphoma (HL), diffuse large B-cell lymphoma (DLBCL), and extranodal natural killer/T-cell lymphoma (ENKTL) that are positive for the Epstein-Barr virus (EBV), the NF-κB and Janus kinase/signal transducer and activator of transcription (JAK/STAT) pathways are continuously active. This evidence concerns the gene NFKB1 and diffuse large B-cell lymphoma.