By analyzing gene expression data available in public database and by immunohistochemical analysis, we had previously shown that EBI3 is expressed by tumor cells in most cases of DLBCL, independently of their GCB or ABC subtypes, with over 30% of tumor cells positive for EBI3 in nearly 80% of DLBCL cases. The gene discussed is EBI3; the disease is diffuse large B-cell lymphoma.