Less than a mastectomy.
D001943:Breast Neoplasms / Q000532:radiotherapy / Q000601:surgery*; D002278:Carcinoma in Situ / Q000601:surgery; D002285:Carcinoma, Intraductal, Noninfiltrating / Q000601:surgery; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis; D008408:Mastectomy; D009364:Neoplasm Recurrence, Local