The relationship of bone marrow micrometastases and nm23 expression in patients with stage-Ⅰ breast cancer / 中国普通外科杂志

Objective To explore the relationship of bone marrow micrometastases(BMM) with nm23 expression of breast cancer(BC) in patients with stage Ⅰ BC. Methods BMM and nm23 expression of carcinoma tissue in 52 cases of stage Ⅰ BC were examined by immunohistochemical technique with monoclonal anti epithelial membrane antigen(anti EMA) and nm23 H1. Results BMM was observed in 10 of 52 patients(19.2%). In the group of poor differentiated cancer, the positive rate of BMM was significantly higher than that in well differentiated cancer(P