Fluorescence stainings of human prostate tissues for c‐Src, Lck and markers. Sections of human prostate tissues were double labelled with antibodies for c‐Src or Lck, together with antibodies for calponin, TH or pan‐cytokeratin. Besides typical prostate architecture composed of stroma and glands, tissues from the periurethral zone may show extended stromal areas without glands, but showing immunoreactivity for the smooth muscle marker calponin. Shown are representative stainings from a series with tissues from n = 5 patients for each combination.