Preoperative Partial Breast Reirradiation and Repeat Breast-conserving Surgery in Patients With Recurrent Breast Cancer: the REPEAT Trial

ablative single-dose PBI followed by BCS after three weeks At baseline (prior to RT) and prior to BCS, toxicity, PROMS and cosmetic outcome will be assessed. Additionally, a preoperative MRI will be performed three weeks following RT to evaluate the acute tumor response.