摘要
Objective To study the differential characteristics of morphology,proliferating degree and expression of MMP-2,MMP-9 between latent carcinoma,incidental carcinoma and clinical carcinoma of the prostate.Methods The morphological features were observed by HE staining and the expressions of Ki-67.PCNA,MMP-2,MMP-9 were studied by immunohistochemistry （SP method） in 24 cases of latent carcinomas,5 cases of incidental carcinomas and 38 cases of clinical carcinomas.
