AZAN

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Term
Peyer's patches of the ileum stained with the AZAN method

AZAN staining (azocarmine, aniline blue and orange G) is a clear histological staining for highlighting ligaments . Azocarmine colors the nuclei red, orange G colors the cytoplasm of cells, and aniline blue is used to stain collagen (intercellular matter in connective tissue) or mucin in cells blue. Erythrocytes turn red.

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