Mastoid lymph nodes

Mastoid Lymph Nodes

File:Lymph node diagram.svg

Diagram of a lymph node structure

The Mastoid Lymph Nodes are a group of lymph nodes located in the posterior part of the head and neck. They are named after their proximity to the mastoid process, a prominent bony prominence behind the ear.

Anatomy

The mastoid lymph nodes are typically small in size and number, usually ranging from one to three in number. They are located posterior to the ear, overlying the mastoid process of the temporal bone.

Function

The primary function of the mastoid lymph nodes, like other lymph nodes, is to filter lymph - a clear or white fluid that is part of the body's immune system. They help to identify and destroy bacteria, viruses, abnormal cells, and foreign substances that enter the body.

Clinical Significance

Enlargement or inflammation of the mastoid lymph nodes, known as lymphadenopathy, can be a sign of infection or disease. This can occur due to a variety of conditions, including ear infections, scalp infections, or lymphoma.

See Also

• Lymphatic system
• Lymph node
• Mastoid process