special stain


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special stain

A stain that highlights features of a cell or organism that cannot be readily identified with routine histological or microbiological staining techniques.
See also: stain
References in periodicals archive ?
Interface changes are typically lacking, and special stains for fungi (Gomori-Grocott methenamine silver stain, periodic acid-Schiff) and tissue cultures will demonstrate organisms.
By adding few special stains such as Sudan black B (SBB) (2) (and not myeloperoxidase as SBB has a little more sensitivity in detecting myeloblasts which is the crucial point), plus a non-specific esterase stain as [alpha]-naphthyl acetate esterase it becomes possible to recognize AML-M1 and most cases of AML-M5a (3).
Therefore, pathologists need to make a greater effort to separate adenocarcinoma from squamous cell carcinoma; this includes a limited workup with special stains such as immunohistochemistry or mucin stains.
Special stains have included the toluidine blue, (10,22) Papanicolaou, (23) Diff-Quik, (24) and Giemsa (25) stains, all of which attempted to improve the nuclear morphology.
If the results obtained with special stains are negative, is the diagnosis sarcoidosis or could it be anything else?
So once daily process controls, such as maintenance logs, temperature charts, special stain control slides, and solution-changing records were totally adapted in all areas, we started down the road to real QA.
It contains a dual abrasive system that effectively and gently cleans teeth without being overly abrasive and also contains a special stain fighting agent that helps remove stains.
Special Stains and a practicum course that provides students with supervised experience in a histology lab, where they practice performing tasks such as grossing, processing.
No single immunohistochemical stain can establish the diagnosis of myeloid sarcoma; rather, a combination of morphologic findings and several immunohistochemical and special stains are required.
A final chapter covers lab techniques, special stains, and immunohistochemistry.
Special stains were performed to exclude other pathologies.

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