What is mediastinal lymph nodes?

Mediastinal lymph nodes are a group of lymph nodes located in the mediastinum, the central compartment of the thoracic cavity situated between the lungs. They play a crucial role in the immune system by filtering lymph fluid and trapping pathogens, cancer cells, and other foreign substances. These nodes are often evaluated in medical imaging and biopsies to assess conditions such as infections, autoimmune diseases, and cancers, particularly lung cancer and lymphoma. Their involvement can significantly influence treatment decisions and prognosis.