a cancer that is concentrated in the lymph nodes is
Lymph node Lymph nodes can be affected by both primary cancers of lymph tissue, and secondary cancers affecting other part of the body. Primary cancers of lymph tissue are called lymphomas and include Hodgkin lymphoma and non-Hodgkin lymphoma. Cancer of lymph nodes can cause a wide range of symptoms from painless long-term slowly growing swelling to sudden, rapid enlargement over days or weeks. Lymphoma is managed by haematologists and oncologists