Inclusion Criteria:

- Ability to understand and the willingness to sign a written informed consent
document.

- Signed written informed consent.

- Women undergoing sentinel lymph node biopsy.

- Women with breast cancer with known or suspected lymph node involvement.

- Women undergoing sentinel node identification and completion axillary lymph node
dissection.

- Women of 18 years of age or older.

- Eastern Cooperative Oncology Group (ECOG) or Karnofsky Performance Status 0,1,2.

- Complete Blood Count (CBC) and basic Metabolic Panel within 6 months

Exclusion Criteria:

- History of liver or kidney failure will not be eligible.

- Allergies to iodine containing products will not be eligible.

- Women who are pregnant will not be eligible.

- Psychiatric or addictive disorders or other conditions that, in the opinion of the
investigator, would preclude the patient from meeting the study requirements.