Abbreviations: ALC, absolute lymphocyte count; AMC, absolute monocyte count; ANC, absolute neutrophil count; ASCT, autologous stem cell transplantation; B2MG, beta-2-microglobulin; CRP, C-reactive protein; CT, computed tomography; ECOG, Eastern Cooperative Oncology Group; EN, extranodal; GPS, glasgow prognostic score; Hb, hemoglobin; IPI, International Prognostic Index; LDH, lactate dehydrogenase; NCCN, National Comprehensive Cancer Network; PET, positron emission tomography; PLT, platelet; SUVmax, maximum standard uptake value.