What is lymphoma?
Lymphoma is uncontrolled growth of abnormal white blood cells, which are cells that help protect us from infection. White blood cells are part of our lymphatic system, which has nodes and tissue throughout the body. This means that lymphoma has many possible places of origin. Usually in lymphoma, abnormal white blood cells develop in the lymph nodes located under the arms, or in the groin, chest, abdomen or neck. The lymphatic system plays a vital role in the functioning of our immune system. This means that if the cancerous cells spread to other lymph nodes they can have an impact on that person’s immune system. About 1 in 10 lymphomas are called Hodgkin lymphomas and can be recognised because they have certain cells called Reed Sternberg cells. They spread differently from the other 9 in 10 non-Hodgkin lymphomas. There are many different types of non-Hodgkin lymphoma.