Medical Dictionary

sentinel node

noun
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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