How is the sentinel node differentiated from second-tier nodes on breast cancer lymphoscintigraphy (sentinel lymph node mapping)?

Updated: Dec 13, 2018
  • Author: Durre Sabih, MBBS, MSc, FRCP(Edin); Chief Editor: Mahan Mathur, MD  more...
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Differentiation of the sentinel node from second-tier nodes can be made by the following:

  • The presence of a lymphatic channel leading to the sentinel node

  • The sequence of appearance (the sentinel node appears first)

  • The intensity of uptake (the sentinel node has more activity)

Confirmation needs blue-dye corroboration.

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