Basic Fuchsin-Crystal Violet; A Rapid Staining Sequence for Juxtaglomerular Granular Cells Embedded in Epoxy Resin

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Abstract
A basic fuchsin-crystal violet staining sequence for demonstration of juxtaglomerular granular cells in epoxy-embedded tissues is rapid and results in slides with excellent contrast and intensity. Procedure: Cut sections 0.3-0.6 μ thick. Hydrate through xylene and alcohol to water. Stain in modified Goodpasture's stain (basic fuchsin, 1; aniline, 1; phenol, 1; 30% alcohol, 100) for 20-30 sec; rinse in tap water; stain in modified Stirling's (crystal violet, 5; alcohol, 10; aniline, 2; water, 88) for 20-30 sec; rinse in tap water and dry on a hotplate; mount in a synthetic resin. Granular cells of the juxtaglomerular apparatus are stained an intense dark blue by the crystal violet. Arterial elastic membranes and collagen are pale blue. Other structures are shades of red.