Lymphoma is cancer that begins in cells of the lymph system. The lymph system is part of the immune system, which helps the body fight infection and disease. Because lymph tissue is found all through the body, lymphoma can begin almost anywhere. The two main types of lymphoma are Hodgkin lymphoma and non-Hodgkin lymphoma (NHL). The prognosis for indolent B-cell non-Hodgkin lymphoma survivors improved slightly with each additional year survived up to 91%. For patients with aggressive non-Hodgkin lymphoma conditional relative survival improved strongly during the first year after diagnosis (from 48% to 68%) and gradually thereafter to 93% after 16 years.
The treatment plan depends mainly on the following:
• The type of non-Hodgkin's lymphoma
• Its stage (where the lymphoma is found)
• How quickly the cancer is growing
• The patient's age