Supplemental table 2 presents the characteristics of the 22 tumors: 18 were no special type carcinomas and 4 invasive lobular carcinomas, among them 13 were SBR 1 and 9 SBR 2, all had a HR-positive/HER2-negative IHC profile, and 18 were Luminal A and 4 Luminal B at percutaneous biopsies. Here, ERBB2 is linked to carcinoma.