Table 1

Reason
ASTRO APBI Pre-Op Suitability#SizeER (-)AgeT2ILC
Suitable191
Cautionary46114101122
Unsuitable0
ASTRO APBI Post-Op Suitability Change#SizeClose MarginsPositive MarginsLVIMultifocalILCEIC
Suitable to Cautionary7792023211124
Suitable to Unsuitable12111
Cautionary to Unsuitable624
  • Abbreviations: ER = Estrogen Receptor; ILC = Invasive Lobular Carcinoma; LVI = Lymphovascular Invasion; EIC = Extensive Intraductal Component