Occipital lymph node

Occipital lymph nodes are a group of lymph nodes located in the occipital region of the human body. They are part of the lymphatic system, which plays a crucial role in the body's immune response.

Anatomy[edit | edit source]

The occipital lymph nodes are typically found at the base of the occipital bone of the skull, near the nape of the neck. They are usually grouped in a cluster of one to three nodes, but the exact number can vary from person to person.

Function[edit | edit source]

The primary function of the occipital lymph nodes, like other lymph nodes in the body, is to filter lymph - a clear or white fluid that circulates through the lymphatic system. The lymph carries white blood cells, including lymphocytes, which are essential for fighting off infections and diseases.

When the body is fighting an infection, the occipital lymph nodes may become enlarged or swollen, a condition known as lymphadenopathy. This is often accompanied by other symptoms such as fever, fatigue, and pain in the affected area.

Clinical significance[edit | edit source]

Swelling or enlargement of the occipital lymph nodes can be a sign of various medical conditions, including infections, autoimmune diseases, and certain types of cancer, such as lymphoma and metastatic cancer. Therefore, any persistent swelling of these nodes should be evaluated by a healthcare professional.

Medical imaging techniques such as ultrasound, computed tomography (CT) scan, and magnetic resonance imaging (MRI) can be used to visualize the occipital lymph nodes and assess their size and structure. In some cases, a biopsy may be performed to obtain a sample of the node for further examination under a microscope.