Performance Assessment of the Fluorescence Technique Alone in the Search for the Sentinel Node in Breast Surgery

Inclusion Criteria

• •Patient over 18 years of age on the day of inclusion,
• •Presenting with breast cancer,
• •Fulfilling the Sentinel Node search criteria of:
• •* Patient with carcinoma in situ with high risk of microinvasion:
• •nodular presentation, high grade with necrosis,
• •suspicion of microinvasion at biopsy,
• •radiological size of more than 40 mm,
• •need for mastectomy or extensive resection requiring a complex oncoplasty surgery (no size criteria, at the surgeon's discretion)
• •* Patient with T1-T2 invasive carcinoma AND no lymph node involvement according to Tumor-Node-Metastasis (TNM) classification (N0) on clinical and imaging (negative axillary echo or negative lymph node biopsy):
• •unifocal or bifocal proximal tumor
• •\< 5 cm (clinical), palpable or non-palpable (subcentimetric allowed)
• •in case of neoadjuvant chemotherapy: before or after if N0 and negative axillary echo or negative biopsy
• •Benefiting from a French social security system
• •Having been informed of the study and having freely given their informed consent to participate in the study.