Objective To investigate the characteristics of EZH2 and p16 promoter methylation in breast cancer and their association with molecular subtypes and clinicopathological features. Methods Totally 81 cases of breast cancer were grouped according to the standard of molecular classification of breast cancer. Immunohistochemical SP and methylation specific PCR(MSP) method were performed to detect the expression of EZH2 and the methylation level of p16 promoter. Relationship between their expression and clinicopa...