Masson trichrome stain

Mas·son tri·chrome stain

(mah-sawn[h]'),
original composition for multicolored tissue preparations including ponceau de xylidine, acid fuchsin, iron alum hematoxylin, and either aniline blue or fast green FCF; chromatin stains black, cytoplasm is in shades of red, granules of eosinophils and mast cells are deep red, erythrocytes are black, elastic fibers are red, and collagen fibers and mucus are dark blue (aniline blue) or green (fast green FCF); modifications substitute other dyes, such as Biebrich scarlet red and wool green stain.

Mas·son tri·chrome stain

(mas-ōn' trī'krōm stān)
Original composition for multicolored tissue preparations including ponceau de xylidine, acid fuchsin, iron alum hematoxylin, and either aniline blue or fast green FCF; chromatin stains black, cytoplasm is in shades of red, granules of eosinophils and mast cells are deep red, erythrocytes are black, elastic fibers are red, and collagen fibers and mucus are dark blue (aniline blue) or green (fast green FCF); modifications substitute other dyes, such as Biebrich scarlet red and wool green stain.
References in periodicals archive ?
Masson trichrome stain demonstrated characteristic pericellular fibrosis; associated trabecular thick bands of fibrosis were seen in some of these cases (Figures 1, A through F; 2, A through C).
Fibrosis is better appreciated in Masson trichrome stain.
The mass was composed of haphazardly arranged bundles of pleomorphic, spindle-shaped, occasionally polygonal cells (Fig 3), intermixed with a small amount of fibrous stroma, as observed by Masson trichrome stain (data not shown).
Sections of the mass were fixed in 10% neutral-buffered formalin, routinely processed, and stained with hematoxylin and eosin and Masson trichrome stains.
For light microscopy the tissues were fixed in Bouin solution and then prepared according to the following paraffin methods: H-E double stain, Masson trichrome stain, PAS reaction, AB-PAS (pH 2.
1-9) The histologic features of collagenous gastritis include lamina propria lymphoplasmacytosis with eosinophils, patchy surface lymphocytosis, patchy subepithelial collagen deposition of variable thickness that can be highlighted with Masson trichrome stain (Figure 4), injury and detachment of surface epithelium, and glandular atrophy.
Using Masson trichrome stain and ancillary immunostains, the diagnosis of seminoma was established.
Masson trichrome stain was performed on sections containing the ghost cells (Figure 2).
The granular material is periodic acid-Schiff--positive and appears red with Masson trichrome stain.
The presence of abnormal subepithelial collagen deposition was confirmed by Masson trichrome stain (Figure 4); staining for amyloid with Congo red was negative.
The Masson trichrome stain (Figure, right) emphasized this pattern, staining the collagen intensely blue and the intersecting cellular population red.