Characterized by malignant lymphomas; clinically similar to hodgkin's disease, except that the lymphomas seen in this disease are initially more widespread; most common manifestation is painless enlargement of one or more peripheral lymph nodes.

Non-Hodgkin lymphoma (NHL), also known as non-Hodgkin's lymphoma, is a group of blood cancers that includes all types of lymphomas except Hodgkin lymphomas. Symptoms include enlarged lymph nodes, fever, night sweats, weight loss, and tiredness...