What are Common Stains Used in Pathological Histology?
Different stains are used to highlight various tissue components:
Hematoxylin and Eosin (H&E): The most common stain, with hematoxylin staining cell nuclei blue and eosin staining the cytoplasm and extracellular matrix pink. Periodic Acid-Schiff (PAS): Used to highlight carbohydrates, such as glycogen, in tissues. Masson's Trichrome: Differentiates between muscle, collagen, and fibrin. Immunohistochemistry (IHC): Uses antibodies to detect specific antigens in tissues, useful for identifying specific cell types and pathogens.