i, EBV Positive DLBCL (of the elderly and immunosuppression associated) ii, T-cell / histiocyte-rich B-cell lymphoma iii, Plasmablastic lymphoma iv, Gray zone lymphoma v, Primary Mediastinal Large B-Cell Lymphoma vi, Primary CNS Lymphoma (DLBCL) vii, Primary testicular lymphoma The biopsy needs to have been obtained within 3 months of signing informed consent.