ESR1 and triple-negative breast carcinoma: Clinical characteristics are presented in Table 1 : 11 tumors were triple-negative breast cancers (TNBCs), 2 were estrogen receptor (ER)-positive and 2 were HER2-positive BCs; 5 were diagnosed as stage IIB at diagnosis, 6 were IIIA, 1 was IIIB and 3 were IIIC.