ERBB2 and triple-negative breast carcinoma: These are ER + PR + /HER2-, ER + PR + or-/HER2 + , ER-PR-/HER2 + and ER-PR-/HER2- that distinguish the 4 molecular subtypes luminal A, luminal B, HER2 + and triple negative breast cancer (TNBC) defined by their pattern of expression of the PAM50 geneset [4].