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 and sub cellular components in
brightfield microscopy has been remarkable, considering that many of
these staining techniques are still widely used for diagnostic purposes
more than a century after their introduction. There is probably no other
area in cell biology where simple histological techniques have survived,
many in their original form, from a period before the current generation
of cell biologists were born. It is interesting that in these days of
rapidly advancing laboratory technology, the most commonly used stain in
biology is based on hematoxylin.