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. 2020 Jul 15;15(4):327–336. doi: 10.1159/000509025

Table 1.

Definition of surrogate subtypes of luminal IBC according to 13th St. Gallen International Breast Cancer Conference (2013) Expert Panel and 5th edition of the WHO Classification of Tumors (2019) [16, 17]

ER PR HER2 Ki-67
Luminal A like Positive Positive Negative Low
Luminal B like
 HER2 negative Positive Negative or low and/or high Ki-67 Negative High and/or PR negative or low
 HER2 positive Positive Any Overexpression and/or amplification Any