Lymphoma is the most common form of blood cancer. There are two main forms of lymphoma: non-Hodgkin lymphoma (NHL) and Hodgkin lymphoma (HL). Lymphoma occurs when lymphocytes - a type of white blood cell - grow abnormally. The body has two main types of lymphocytes that can develop into lymphomas: B-lymphocytes (B-cells) and T-lymphocytes (T-cells). These cancerous lymphocytes can travel to different parts of the body, including the lymph nodes, spleen, bone marrow, blood or other organs, and can accumulate to form tumors.
Follicular lymphoma is typically a slow-growing form of NHL that arises from B-lymphocytes, making it a B-cell lymphoma. This lymphoma subtype accounts for 20 percent to 30 percent of all NHL cases.
Follicular lymphoma is usually not considered to be curable, but patients can live for many years with this form of lymphoma. It is a disease characterized by multiple relapses after responses to a variety of therapies.