In all panels, the brown color represents RNA polymerase III staining, with nuclei in blue (Mayers’ hematoxylin counterstain). Magnifications are 10× (upper panels of each set - panels A, C, E and G) and 40× (lower panels of each set - panels B, D, F and H). In each set, the 40× panel is a magnification of part of the field shown at10×. The cancer sections shown were from subjects # 4 (ovarian cancer) and # 42 (breast cancer).