Objective: To investigate the expression of androgen receptor(AR) in human epidermal growth factor receptor-2(Her-2)-enriched breast cancer and its prognostic significance.Methods: One hundred and two patients with Her-2-enriched breast cancer(as observation group) and 40 patients with triple negative breast cancer(as the control group) were selected. The expression of AR in breast cancer tissues was detected by immunohistochemical staining. The relationships of AR expression with the clinicopathological ch...