What is CNS lymphoma?
Central nervous system lymphoma (commonly called CNS lymphoma) is a disease in which malignant cancer cells form in the lymph tissue of the brain and/or spinal cord.
The lymphatic system is part of the immune system and is made up of the lymph, lymph vessels, lymph node, spleen, thymus, tonsils and bone marrow.
Lymphocytes carried in the lymph travel in and out of the central nervous system.
Cancer cells form in the lymphatic tissue in the brain; this is often in an area called the cerebrum.