Fig. 4From: Altered PCA3 and TMPRSS2-ERG expression in histologically benign regions of cancerous prostates: a systematic, quantitative mRNA analysis in five prostatesHistology of prostate C showing (a) HE staining and (b) immunohistochemical ERG staining from the same area. The nuclei of malignant glands stain positively for ERG suggesting that ERG is overexpressed due to TMPRSS2-ERG fusion. Scale bar 500 μmBack to article page