variants:
or sentinel lymph node
Medical Definition of sentinel node
: the first lymph node to receive lymphatic drainage from the site of a primary tumor
studies concluded that sentinel node biopsy can predict whether axillary node metastasis is present— Lecia M. Apantaku the use of sentinel nodes for pathologic staging of bladder cancer— Anne Scheck
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“Sentinel node.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/sentinel%20node. Accessed 16 Apr. 2021.
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