EBRO 2017

RTOG 9804

Low-risk DCIS

-No symptoms: either mammographic finding or incidental finding

in otherwise benign bx

-ONLY low or intermediate grade anywhere

-Size (defined on mammogram if possible) ≤ 2.5 cm

-Margin width ≥ 3 mm

-Stratified by age (+/- 50), size (≤1 cm, >1 cm), margin width (3-9

mm, >1 cm, negative re-excision)

McCormick et al., JCO, 2015