Hodgkin's lymphoma — formerly known as Hodgkin's disease — is a cancer of the lymphatic system, which is part of your immune system. It may affect people of any age, but is most common in people between 20 and 40 years old and those over 55.
In Hodgkin's lymphoma, cells in the lymphatic system grow abnormally and may spread beyond it.
Hodgkin's lymphoma is one of two common types of cancers of the lymphatic system. The other type, non-Hodgkin's lymphoma, is far more common.
Advances in diagnosis and treatment of Hodgkin's lymphoma have helped give people with this disease the chance for a full recovery. The prognosis continues to improve for people with Hodgkin's lymphoma.