Which reagent is used in both Gomori trichrome and Masson trichrome?

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Multiple Choice

Which reagent is used in both Gomori trichrome and Masson trichrome?

Explanation:
Aniline blue is used to color collagen in both Gomori trichrome and Masson trichrome. In these trichrome methods, tissue components are differentially stained with contrasting dyes so collagen fibers stand out from muscle and cytoplasm. Aniline blue specifically binds to the collagen, showing it as blue, which provides a clear distinction of connective tissue and fibrosis. The other dyes in these protocols target nuclei or muscle/cytoplasm, not the collagen. That’s why aniline blue is the reagent shared by both stains.

Aniline blue is used to color collagen in both Gomori trichrome and Masson trichrome. In these trichrome methods, tissue components are differentially stained with contrasting dyes so collagen fibers stand out from muscle and cytoplasm. Aniline blue specifically binds to the collagen, showing it as blue, which provides a clear distinction of connective tissue and fibrosis. The other dyes in these protocols target nuclei or muscle/cytoplasm, not the collagen. That’s why aniline blue is the reagent shared by both stains.

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