aldehyde fuchsin

a stain developed by Gomori, utilizing basic fuchsin paraldehyde and hydrochloric acid; it produces violet staining of elastic fibers, mast cell granules, gastric chief cells, beta cells of the pancreatic islets, and certain hypophyseal beta granules; other pituitary granules and cells stain in other colors. See Also: Gomori’s aldehyde fuchsin stain.

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