2016 Hematological Malignancies

How would you treat this 45 year old man with retroperitoneal mass ? A. Watch and wait B. Single agent Rituximab C. Involved Field Radiation Therapy (IFRT) D. 6-8 cycles of Rituximab- Chemotherapy E. 3 cycles of Rituximab-chemotherapy and consolidation Involved Site Radiation Therapy (ISRT) F. 6-8 cycles of Rituximab chemotherapy and consolidation ISRT A. B. C. D. E. F. 17% 17% 17% 17% 17% 17%