Verhoeff Van Gieson / EVG Stain

$12/slide

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Verhoeff Van Gieson / EVG Stain

This method is used for identifying elastic fibers in tissues such as skin, aorta, etc. on formalin-fixed, paraffin-embedded sections, and may be used for frozen sections as well. The elastic fibers will be stained blue-black and background will be stained yellow.

Fixation: 10% formalin.
Section: paraffin sections at 5 um.

Procedure:
1) Deparaffinize sections if necessary and hydrate in distilled
water.
2) Place slides in working Elastic Stain Solution for 15 minutes.
3) Rinse in running tap water until no excess stain remains on
slide.
4) Dip slides in Differentiating solution 15-20 times and rinse in tap
water.
5) Check slides microscopically for proper differentiation. Repeat
step 4 if required.
6) Rinse slide in running tap water.
7) Place slides in Sodium Thiosulfate Solution for 1 minute.
8) Rinse slide in running tap water.
9) Stain slide using Van Gieson’s Solution for 2-5 minutes.
10) Rinse in two changes of 95% alcohol.
11) Dehydrate in absolute alcohol.
12) Clear and mount in synthetic resin.

Result:
Elastic fibers: black to blue-black
Nuclei: blue to black
Collagen: red
Other tissue elements ---------- yellow 



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