The most common site of lymph node metastasis in breast cancer

The most common site of lymph node metastasis of breast cancer is the armpit. Axillary

lymph node metastasis

is the first site of breast cancer lymph node metastasis, mainly because the lymph drainage of breast mainly leads to the armpit. Breast cancer cells can gradually spread to axillary lymph nodes through lymph vessels. When cancer cells invade axillary lymph nodes, lymph nodes can be enlarged.

Axillary lymph node metastasis is important for breast cancer staging, treatment planning, and prognosis. Doctors often assess axillary lymph node status by palpation, ultrasound, and magnetic resonance imaging (MRI).

In addition, breast lymph nodes are also possible sites for lymph node metastasis. The lymph nodes of the inner breast are located near the sternum, and breast cancer cells may also metastasize by this route.

For breast cancer patients, accurate assessment of the location and extent of lymph node metastasis is essential for individualized and precise treatment. Treatment may include surgical dissection of axillary lymph nodes or sentinel lymph node biopsy to eliminate metastatic cancer cells as much as possible, combined with radiotherapy, chemotherapy, endocrine therapy or targeted therapy to improve the treatment effect and prognosis of patients. At the same time, close monitoring of lymph node metastasis in order to adjust the treatment plan in time.