Figure 1: Histological demonstration of human prostate biopsies using Hematoxylin and Eosin stain. S09, 20 and 30 represents PCa biopsies, while S29 and 40 represents BPH biopsies. Increased in cell proliferation is characteristic of both tissue types. The distribution of cell mass is uniform and restricted to the epithelium in BPH; it is found at random tissue sites in PCA (magnification X400).