As per my understanding you want to know about the best therapy for lymphoma stage 2. Treatment and Prognosis of a cancer depends on many factors, which include the type of cancer, its stage and the age and general condition of the individual. The treatment for stage 2 lymphoma depends on the type of lymphoma, medical history of patient, and others. Line of treatment is mainly chemotherapy, radiotherapy, immunotherapy and stem cell therapy. Any modality of treatment depends upon the condition of patient, his age, type and stage of cancer. Treatment is stage wise. Immunotherapy is newer treatment and side effects may be mild to severe like skin reactions, flu-like symptoms, body ache, diarrhea, headaches etc. Regarding blood test ,most of the investigations are on similar pattern which are use to diagnose the disease with few variations. But choice of treatment depends on the clinician's decision and as per the response of patient. Consult an oncologist - Best Oncologist In India. Hope our answer helps you.