EBRO 2017

Clinical example: tumour foci beyond gross tumour in mastectomy specimens

42% - No invasive tumour foci or DCIS found beyond gross tumour

17% - Invasive tumour foci found < 2 cm from gross tumour

28% - DCIS found > 2 cm from gross tumour

14% - Invasive tumour foci found > 2 cm from gross tumour

10% - DCIS or invasive tumour found 4 cm away from gross tumour

Redrawn from Holland R et al (1985) Cancer 56:979-990

ESTRO: Evidence-based Radiation Oncology