Abstract: Sentinel lymph nodes(SLN)play a vital role in the diagnosis and treatment of axillary lymph nodes in breast cancer. Sentinel lymph node biopsy(SLNB)is an important means to diagnose SLN metastasis, and it is also the key to determine whether axillary lymph node dissection(ALND)is performed in patients with breast cancer. With the development of medical technology, imaging technology is also applied to SLN. The application of computed tomography lymphography(CTLG)in SLN localization, detection and SLNB has been paid more and more attention by clinicians, and its role in clinical practice is discussed.

Key words: breast cancer, sentinel lymph node, sentinel lymph node localization, sentinel lymph node detection, sentinel lymph node biopsy, CT lymphography

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