sentinel node

sentinel node n 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)> called also sentinel lymph node

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1. the first lymph node to receive drainage from a tumor, used to determine whether there is regional lymph node metastasis in certain types of cancer; lack of metastasis to the sentinel node indicates a very low risk of metastasis to more distal nodes. 2. signal n.

Medical dictionary. 2011.

Look at other dictionaries:

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