Interpreting PAS staining results involves identifying the magenta or pink coloration that indicates the presence of polysaccharides or mucosubstances. For example:
Glycogen: Appears as magenta granules within cells, especially in liver tissues. Basement Membrane: The glomerular basement membrane in kidney sections will stain magenta, aiding in the diagnosis of renal diseases. Mucin: Epithelial mucins will appear pink or magenta, which is helpful in identifying mucinous tumors.
