Fluorescence-guided Resection in Breast Cancer

Inclusion Criteria: * Written informed consent * Caucasian female postmenopausal patients * Patients with histologically confirmed primary palpable and nonpalpable breast cancer sized up to 5 cm (T1 - T2) Exclusion Criteria: * Suspicious lymphogenic metastases (cN1-3) * Acute or chronic hepatic diseases * Manifest renal diseases with renal dysfunction * Relevant cardiac disease * Preceding therapy of breast tumour under investigation * Patients with multiple attempts of hook-wire placement in preparation of surgery * Dementia or psychic condition that might interfere with the ability to understand the study and thus give a written informed consent * Simultaneous participation in another clinical study or participation in another clinical study in the 30 days directly preceding treatment