Lymphoma is a cancer of the lymphatic system, which is part of the body's germ-fighting network. The main subtypes are: Hodgkin's lymphoma & Non-Hodgkin's lymphoma. There are over 75 subtypes of lymphoma. The GOOD NEWS, according to Dr. Jeremy Abramson, Director, Center for Lymphoma at Massachusetts General Hospital Cancer Center, is that Lymphoma is highly TREATABLE, and many types are highly CURABLE. The most important thing is to see your doctor if you are experiencing unusual symptoms such as enlarged lymph nodes (not related to another infection), persistent high fevers, fatigue, drenching sweats during sleep, and unexplained weight loss, for example. Dr. Abramson says get a biopsy as soon as possible for the best outcome. Here's our just-released 'Good Health' segment on this very important topic.