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In histology, the HPS stain, or hematoxylin phloxine saffron stain, is a way of marking tissues. HPS is similar to H&E , the standard bearer in histology. However, it differentiates between the most common connective tissue ( collagen ) and muscle and cytoplasm by staining the former yellow and the latter two pink, [ 1 ] unlike an H&E stain ...
Many methods of performing Perls Prussian blue stain for iron have been published, [2] Drury and Wallington (1980) give a protocol that uses a mixture of 1 part 2% hydrochloric acid and 1 part 2% potassium ferrocyanide that is applied to the section for 20–30 minutes followed by a rinse in distilled water and application of a counterstain ...
It is similar to Masson's trichrome stain, but it uses Biebrich scarlet for the plasma stain. It was initially published by Ralph D. Lillie in 1940. [ 1 ] It is applied by submerging the fixated sample into the following three solutions: [ 2 ] Weigert's iron hematoxylin working solution, Biebrich scarlet solution, and Fast Green FCF solution.
H&E stain. Microsatellite instability (MSI) is the condition of genetic hypermutability (predisposition to mutation) that results from impaired DNA mismatch repair (MMR). The presence of MSI represents phenotypic evidence that MMR is not functioning normally.
Positive histologic stains that aid in the diagnosis of conditions of or affecting the human integumentary system Stain Cell, material, and/or structure(s) stained Condition(s) in which stain is positive Actin-specific enolase: Infantile digital fibromatosis: AE1/AE3: Squamous cell carcinoma: Alcian blue: Lipoid proteinosis Papular mucinosis ...
Ponceau 2R, Xylidine ponceau, Ponceau G, Red R, Acid Red 26, Food Red 5, or C.I. 16150 is a red azo dye used in histology for staining.It is easily soluble in water and slightly in ethanol.
Wright's stain is a hematologic stain that facilitates the differentiation of blood cell types. It is classically a mixture of eosin (red) and methylene blue dyes. It is used primarily to stain peripheral blood smears , urine samples, and bone marrow aspirates , which are examined under a light microscope .
Micrograph showing loss of staining for MLH1 in colorectal adenocarcinoma in keeping with DNA mismatch repair (left of image) and benign colorectal mucosa (right of image). DNA mismatch repair ( MMR ) is a system for recognizing and repairing erroneous insertion, deletion, and mis-incorporation of bases that can arise during DNA replication and ...