Masson’s Trichrome blue and green in the same tissues:
Blue Green Blue Green
We have over 40 special stain protocols that can be customized to fit your needs. We realize that not every histology lab’s stains look the same, that’s why we are will to change, and modify our protocols to suit your project. The subtle differences of one stain, in our eyes may be minute but what counts is our clients preferences.
In the past, we have done custom stains such as modifying the trichrome blue to a green. Looking at them in the colon, the colors are very similar but the umbilical cord has marked changes. Striving to meet your needs not matter the application, we are all about your needs. This goes beyond staining, we will change any of our histology services (protocols) to make a good fit for you.
Today there was an issue with faded sections stained with Masson’s Trichrome. The researcher wanted to have vibrant red and blue colors on his tissues like he is use to without cutting new sections. He said the sections on the stained slide was exactly where he wanted to be and was afraid to cut deeper for more sections. I understood and set off to ask the histology forum exactly how to do this, there was no answer. I can make this work and set to first get the coverslips off just a couple of his slides.
After the coverslips are off, I used the same de-staining procedure for the H&E. Run the slides into 100% alcohol, 95% alcohol and then running water for 10 minutes. For an H&E stained section, normally most of the stain is washed out by the running water. For the Masson’s trichrome this did not happen. After an hour of washing in cold, hot and distilled running water, the blue was mostly gone but the red and purple nuclei were still present. So I thought about how the biebrich scarlet acid fuchsin stain works, it is an acid stain. This means that maybe I could use a very weak base to help the stain loosen from the tissue. The left over blue and purple nuclei could maybe taken out by an alcoholic acid like the one used in the H&E stain.
The staining was a success and looked as good as if it was never re-done. To celebrate this new de-stain and re-stain protocol, I am posting it here just in case anyone else needs an unusual de-staining protocol for Masson’s trichrome. The real procedure is as follows:
De-coverslip slides in xylene – Until coverslips come off very easily
Soak in new-used xylene – 10 minutes after coverslips are off.
I am trying to figure out what to do about the special stains protocols. There are about 35 of them. Putting them on the front page does not seem to be efficient. I would like them all to be searchable and downloadable, maybe on a different page. What do you think, does it make a difference?