Sentinel Lymph Node Biopsy (SNLB)

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Sentinel Lymph 

Node Surgery (SLNB) 

A sentinel lymph node is the first lymph node which cancer cells go to from the primary tumor.  There may be more than one sentinel lymph node.

A sentinel lymph node biopsy (SLNB) is a procedure in which the sentinel lymph node is:

  • Identified
  • Removed
  • Examined

This procedure determines if cancer cells have spread to the lymphatic system.  If cancer cells are present in the lymph, then there is a possibility it can or has already spread to other organs of the body.

A sentinel lymph node biopsy aides the doctor in:

  • Determining what stage the cancer has reached
  • Developing a treatment plan for the patient
  • Preventing the spread of breast cancer

To learn more about sentinel lymph node biopsy, watch the video below:



National Cancer Institute at the National Institutes of Health