Lymphoma is a cancer that originates in the lymphatic system, which is part of the immune system. The lymphatic system includes lymph nodes, spleen, and other organs that produce and store white blood cells. In lymphoma, lymphocytes (a type of WBC) grow uncontrollably and form tumors. There are two main types of lymphoma: Hodgkin lymphoma and non-Hodgkin lymphoma. Treatment options include chemotherapy, radiation therapy, and immunotherapy.
