Lymphoma is a kind of cancer that influences the immune system particularly. It is a cancer of immune cells called lymphocytes, a kind of white blood cell. There are two broad kinds of lymphoma and many subtypes. The two kinds of lymphoma are described as Hodgkin’s or non Hodgkin’s. Lymphoma can happen at any age but is the most general cancer in young people. It is frequently incredibly treatable, and most people live for a long time after being diagnosed.