Gülhane is one of the biggest training and research hospital of our country (1500 beds). Our general surgery clinic has 4 outpatient polyclinic services and 15,000 patients are examined per year. Almost half of these cases are related to breast diseases. About 250 breast cancer surgeries per year are performed in our clinic where 3 rooms with single bed, 2 rooms with double beds and 2 rooms with four beds are reserved to breast disease patients. In case of need, the number of beds can be doubled. Gülhane training and research hospital is the preferred center for conservative oncoplastic surgery in our country. On the other hand, oncoplastic techniques are applied to appropriate patients by experienced surgeons in this field. Among the important developments in the field of surgical oncology in recent years, gamma-probe applications with sentinel lymph node biopsy and oncoplastic breast surgery are routine practice in our clinic.