What condition is characterized by disease of the lymph nodes?

Lymphadenopathy is a broad condition that is characterized by swelling or enlargement of the lymph nodes, which can occur due to a variety of reasons such as infections, autoimmune diseases, or malignancies. The term itself means "disease of lymph nodes," covering a range of pathological changes. When lymph nodes are involved, it's essential to differentiate whether the swelling is due to infectious processes, malignancies, or other systemic conditions.

Whereas lymphadenitis refers specifically to the inflammation of lymph nodes, often due to bacterial or viral infections, lymphangitis describes inflammation of the lymphatic vessels, and lymphosarcoma is a type of cancer that can originate in the lymphatic system. Therefore, while these terms relate to lymphatic system disorders, lymphadenopathy is the most inclusive and accurate choice for describing a condition primarily identified by disease in the lymph nodes.