IMMUNOLOGY

Detailed explanation-1: -The axillary lymph nodes reside in the axillary pad of fat and fall into five groups. [3] Every group of lymph nodes receives lymph from a specified, nearby region. Anterior (pectoral) lymph nodes are along the inferior border of pectoralis minor, near the lateral thoracic vessels.

Detailed explanation-2: -See your doctor right away if you notice any changes in your underarm lymph nodes including pain, large size, tenderness, and more.

Detailed explanation-3: -Swollen lymph nodes in the armpit can be a sign of common viral infections, such as the flu or mono. They can also occur as a result of a bacterial infection or RA. In some cases, swollen lymph nodes are a symptom of cancer. Warm compresses and OTC pain medication can ease any pain or tenderness.

Detailed explanation-4: -Enlarged axillary lymph nodes can be a symptom of the following local or metastasized (systematic) cancer maladies: A tumor in or near the axillary lymph node. Leukemia.

Detailed explanation-5: -Normal axillary lymph nodes are oval shaped, have a well-defined margin with an hypoechoic thin cortex (with a thickness 2.3–3 mm, depending on guidelines in different countries) [4], [13]. Suspicious US characteristics include diffuse or focal cortical thickening, irregular margins, and effacement of the fatty hilum.

Detailed explanation-6: -The number of axillary lymph nodes can vary from person to person. Typically, a person has 20–30 axillary lymph nodes. After a breast cancer diagnosis, a doctor may check whether cancer cells have spread to the axillary lymph nodes. This can help confirm the diagnosis and staging of cancer.

Detailed explanation-7: -Breast cancer frequently spreads to the axillary (armpit) lymph nodes. Traditionally, when breast cancers were removed, an operation known as axillary lymph node dissection was performed to remove most of the lymph nodes in the armpit.