Intercostal lymph nodes

The lymphatic system, highlighting the intercostal lymph nodes.

The Intercostal Lymph Nodes are a group of lymph nodes located in the intercostal space between the ribs. They play a crucial role in the lymphatic system, which is responsible for maintaining the body's fluid balance and defending against infections.

Anatomy

The intercostal lymph nodes are small, bean-shaped structures that are typically less than 1 cm in diameter. They are located along the intercostal vessels, which run between the ribs. There are usually three to four intercostal lymph nodes in each intercostal space.

Function

The primary function of the intercostal lymph nodes is to filter lymph, a clear fluid that contains white blood cells and circulates throughout the body. These nodes trap and destroy harmful substances such as bacteria, viruses, and cancer cells that may be present in the lymph.

Clinical Significance

Enlargement of the intercostal lymph nodes, known as lymphadenopathy, can be a sign of various medical conditions, including infections, autoimmune diseases, and cancers such as lymphoma and lung cancer.

See Also

• Lymphatic system
• Lymph node
• Lymphadenopathy