It is commonplace, virtually platitudinous to say that the practice of histopathology has changed almost beyond recognition during the last three or four decades. It is correct that the scope of pathology has widened and that greater diagnostic accuracy can often be achieved. The persistence and continuing viability and growth of hematoxylin and Eosin morphology indicates that this simple technique continues to meet most of the requirement of not only pathologists but also clinicians and, let us not forget, patients.The contribution of staining techniques to provide contrast to tissues, cells...