Non-Hodgkin's lymphoma is cancer that originates in your lymphatic system, the disease-fighting network spread throughout your body. In non-Hodgkin's lymphoma, tumors develop from lymphocytes — a type of white blood cell.                   Non-Hodgkin's lymphoma is more than five times as common as the other general type of lymphoma — Hodgkin's disease. And Non-Hodgkin's lymphoma has been increasing in incidence in the United States since the 1970s.                    The good news is that although the incidence has increased, so has the survival rate. As with other cancers, the earlier the diagnosis, the greater your chance for a successful treatment of non-Hodgkin's lymphoma.                     Symptoms              Swollen, painless lymph nodes in your neck, armpit or groin areas are often the only sign of non-Hodgkin's lymphoma in its early stages. Other signs and symptoms may include:                    Fever Night sweats Fatigue Weight loss Abdominal pain or swelling Chest pain, coughing or trouble breathing Extremely itchy skin [ Back ]