Safety and Efficacy of Sentinel Node Biopsy Omission for Breast Cancer Patients Who Plan to Have Adjuvant Chemotherapy

Eligible patients will be female, ages 18 and older and have a diagnosis of Clinical T1 or T2 invasive breast cancer with no suspicious palpable adenopathy. Patients will undergo standard of care lumpectomy without sentinel node biopsy and whole breast radiation, followed by chemotherapy. Sentinel node biopsy is also considered standard care when patients have localized breast cancer. Treatment can often be influenced by whether the results of the biopsy show cancer or not. However, the biologic factors of the primary tumor have become more important in determining treatment recommendations in women with clinically node negative breast cancer.