ESTRO Multidisciplinary Management of Breast Cancer 2017

Results of the EBCTCG meta-analysis: lumpectomy +/- RT: Ipsilateral breast events*

Conclusion of all analyses:

Incl. Tamoxifen

• RT reduces LR with factor 2; • about 50% of recurrences concerns an invasive recurrence (~ 40% probability to become invasive if untreated at all)

EBCTCG JNCI 2010