Superior diaphragmatic lymph nodes

Superior Diaphragmatic Lymph Nodes are a group of lymph nodes located at the superior surface of the diaphragm. They play a crucial role in the lymphatic system, which is part of the body's immune system.

Anatomy

The Superior Diaphragmatic Lymph Nodes are situated on the superior surface of the diaphragm, near the thoracic vertebrae. They are typically small in size, and their number can vary from person to person. These lymph nodes receive lymphatic drainage from the diaphragmatic surface, which includes the pleura and pericardium.

Function

The primary function of the Superior Diaphragmatic Lymph Nodes is to filter lymph, a clear or white fluid that is part of the body's immune system. Lymph contains white blood cells, which help the body fight off infections and diseases. The Superior Diaphragmatic Lymph Nodes filter the lymph that drains from the diaphragmatic surface, removing harmful substances and producing immune cells.

Clinical Significance

Enlargement or inflammation of the Superior Diaphragmatic Lymph Nodes can be a sign of various medical conditions, including infections, cancer, and autoimmune diseases. In particular, these lymph nodes can be involved in the spread of lung cancer and breast cancer. Therefore, they are often examined in medical imaging studies, such as computed tomography (CT) scans, to assess the stage of these cancers and guide treatment decisions.

See Also

• Lymphatic system
• Lymph node
• Diaphragm (anatomy)
• Immune system