ESTRO Multidisciplinary Management of Breast Cancer 2017

Can we accept a positive margin?

P<0.02

40

• Rivere et al, 2016. 247 patients • Margin re excision performed in 23% • 46 patients with a close margin, • 11 had a positive margin • The following variables were not predictive of residual disease: • tumor stage, • ER/PgR status, • HER2/neu receptor status, • nodal status.

35

30

25

20

15

10

5

0

Residual tumour in re excision

close margin involved margin