Gomori methenamine-silver stain

Go·mo·ri meth·en·a·mine-sil·ver stain

(gō-mō'rē),
techniques for argentaffin cells: a method using a methenamine-silver solution in combination with gold chloride, sodium thiosulfate, and safranin O; argentaffin granules appear brown-black against a green background; urates: warm sections are treated directly with a hot methenamine-silver solution to produce a blackening of urates; fungi: see Grocott-Gomori methenamine-silver stain; melanin, which reduces silver nitrate.
Synonym(s): GMS stain

Go·mo·ri meth·en·a·mine-sil·ver stain

(gō-mōr'ē meth-en'ă-mēn sil'vĕr stān)
Techniques for 1) argentaffin cells: a method using a methenamine-silver solution in combination with gold chloride, sodium thiosulfate, and safranin O; argentaffin granules appear brown-black against a green background; 2) urates: warm sections are treated directly with a hot methenamine-silver solution to produce a blackening of urates; 3) fungi:see Grocott-Gomori methenamine-silver stain; 4) melanin, which reduces silver nitrate.
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4) The organisms are readily apparent with the use of special histochemical stains, such as Gridley fungus stain, periodic acid-Schiff (with or without diastase), and Gomori methenamine-silver stain (Figure 3).
Cutaneous protothecosis
The granules were approximately 200 to 300 [micro] m in diameter They were positively stained with Gram and Gomori methenamine-silver stain, showing rodlike structure with arborizing growth pattern, which was consistent with features of P acnes (Figure 3, B).
Granulomatous colitis associated with botryomycosis of propionibacterium acnes
The presence of fungal elements entrapped within laminated lakes of mucin was confirmed with Gomori methenamine-silver stain.
A Healthy 31-Year-Old Man With Sinusitis
Microcrystalline cellulose, on the other hand, retains the staining properties of native wood cellulose and can be highlighted by periodic acid-Schiff (with or without diastase), Congo-red (without apple-green birefringence), and Gomori methenamine-silver stains.
The movat pentachrome stain as a means of identifying microcrystalline cellulose among other particulates found in lung tissue

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