About 5% of breast cancers are metastatic at diagnosis and 20-30% of localized breast cancer become secondarily metastatic.Thanks to recent therapeutic advances, the median survival ranges between 12 months in 1970 and 18 to 24 months in 20
In this study the investigators observe the investigation, whether the new method for Boost-Irradiation with the Intrabeam Device of Zeiss Germany influences local recurrence, acute and late effects of Radiotherapy, overall survival, qualit