Application of Ultrasonography in Sentinel Lymph Node Examination of Breast Cancer

After routine axillary lymph node dissection, it is easy to cause ipsilateral upper limb edema in breast cancer patients, which is difficult to treat and has a greater impact on the quality of life of patients. Sentinel lymph node is a common local metastasis site in patients with breast cancer. To determine whether axillary lymph node metastasis is the key information for formulating individualized treatment. Sentinel lymph node metastasis in breast cancer is a predictor of recurrence rate and overall survival rate of patients, and its status directly determines the scope of surgery and whether radiotherapy is performed after mastectomy. With the development of clinical imaging, contrast-enhanced ultrasound has been widely used in sentinel lymph node examination of breast cancer, which can improve the accuracy of the examination. This article reviews the application of ultrasound in sentinel lymph node examination of breast cancer, hoping to provide reference for clinical related work.