ASMR

Partial breast irradiation indication guidelines

ESTRO • >50 years • IDC, mucinous, tubular, medullary, and colloid cc. • Associated LCIS allowed but not DCIS • Any grade, ER, PR • pT1–2 ( ⩽ 30 mm) • Negative surgical margins ( ⩾ 2 mm) • Unicentric, Unifocal • pN0 (by SLNB or ALND)

ASTRO • ≥60 years • Invasive ductal or other favorable subtypes • Pure DCIS not allowed • ER status positive • pT1 : ≤ 2 cm • Negative surgical margins by at least 2 mm • Unicentric only, Clinically unifocal with total size ≤2.0 cm • pN0 (i - , i + ) (by SLNB or ALND)

Polgar, Radiother Oncol 2010

Smith IJROBP 2009