What is Lymphoma?

Lymphoma is a cancer of the lymphatic system, which is part of the body's immune system. It occurs when lymphocytes, a type of white blood cell, grow abnormally and form tumors. There are two main types: Hodgkin lymphoma and non-Hodgkin lymphoma, with the latter being more common. Key facts include that it is one of the most treatable cancers, especially when diagnosed early, and treatment options have advanced significantly in recent years.