Clinical Research Directory

Inclusion Criteria: * histopathological diagnosis of breast cancer * age 18 years or older * male or female * treated with breast conserving surgery or mastectomy with curative intent * multidisciplinary decision of adjuvant radiotherapy after surgery Exclusion Criteria: * distant metastases * decision of preoperative radiotherapy * decision of partial breast irradiation * positive resection margins ('ink on tumour') * indication for boost on lymph node(s) * history of thoracic or ipsilateral axillary radiotherapy (including radiotherapy of the contralateral breast or chest wall) * need for bilateral irradiation * breast reconstruction or expander * patients unlikely to comply with the protocol (e.g. inability or unwillingness to complete the questionnaires at different time points).