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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)

Smith IJROBP 2009

Polgar, Radiother Oncol 2010