Observational Study of Intra-operative Partial Irradiation of Invasive Ductal Breast Carcinomas With a Good Prognosis

All patients will have local excision of the primary tumor following appropriate clinical work-up. Surgery will be done according to usual local practice with a complete excision of the tumor. The aim of the local excision should be to achieve a minimum free margin of 2 mm whilst maintaining a good cosmetic outcome.

20 Gy of per-operative partial irradiation at the tumor site during the surgery