• Hasan Karanlik, Ilker Ozgur, Berkay Kilic, Alisan Fathalizadeh, Yasemin Sanli, Semen Onder, Pinar Saip, Fatma Sen, and Bahadir M Gulluoglu.
• Surgical Oncology Unit, Institute of Oncology, Istanbul University, Istanbul, Turkey. hasankaranlik@yahoo.com.
• J Surg Oncol. 2016 Dec 1; 114 (7): 796-802.

Background And ObjectivesIt is not clear whether sentinel lymph node biopsy (SLNB) can be applied to patients with a second breast cancer or recurrence occurring at previously treated breast. The purpose of this study was to assess the feasibility of SLNB procedure in patients with recurrent breast cancer.MethodsPatients with non-metastatic recurrent N0 breast cancer at ipsilateral breast were included. Patients were grouped according to their initial breast, axilla, and overall surgery. Presence of drainage and its pattern as well as SLNB success rate and overall axillary involvement rates were assessed. Findings were compared.ResultsOut of 75 patients, mean age was 52.5 years and disease-free interval was 82 (9-312) months. Lymphatic drainage was successful in 42 (56%) patients. Drainage positivity was more frequent in patients who were previously treated with SLNB (82.6%) than in patients who underwent axillary lymph node dissection (ALND) (44.2%; P = 0,002). Aberrant lymphatic drainage was detected in 64.3% of drainage positive patients. Success rate of reoperative SLNB was 92.9%. Adjuvant treatment plan was altered in 12 (16%) patients. In 15 patients, negative SLNB prevented axillary dissection.ConclusionsReoperative SLNB seems to be technically feasible in N0 recurrent breast cancer patients. It may further avoid unnecessary ALND and lead changes in adjuvant treatment plans. J. Surg. Oncol. 2016;114:796-802. © 2016 2016 Wiley Periodicals, Inc.© 2016 Wiley Periodicals, Inc.

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