Lymphoma is a cancer of a part of the immune system, also known as the
lymphatic system, which fights off disease and infection. There are
various types of lymphoma, including Hodgkin's disease and non-Hodgkin's
lymphoma.
Non-Hodgkin's lymphomas develop when certain abnormal white blood cells
begin to divide, producing a large number of abnormal cells that can spread
throughout the body.
Hodgkin's disease is characterized in its early stages by an enlarged lymph
node. As Hodgkin's disease progresses, it can spread to other lymph nodes,
the lungs, the liver or bone marrow.
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