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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