The investigators select the postmenopausal patients with breast cancer who is confirmed by core needle biopsy and at the clinical stage T2-4N0-2M0.Treat them with 4 cycles of TAC as neoadjuvant chemotherapy (Docetaxel was 75mg/m2, the EPI 60mg/m2 and the CTX 600mg/m2,21day/cycle).At the same time give daily oral exemestane 25mg for 12 weeks.Then assess the efficacy and safety of TAC and Exemestane.
Select the postmenopausal patients with breast cancer who is confirmed by core needle biopsy and at the clinical stage T2-4N0-2M0.Treat them with 4 cycles of TAC as neoadjuvant chemotherapy (Docetaxel was 75mg/m2, the EPI 60mg/m2 and the CTX 600mg/m2,21day/cycle).At the same time give daily oral exemestane 25mg for 12 weeks.Then assess the efficacy and safety of TAC and Exemestane.