I work in a private office where we do frozen H&E's. Today and the end of last week we have been having trouble with our stain. The elastic fibers / solar elastosis have been staining black. Normally they are blue. I have tried changing the stain, and changing our bottles of OCT and mounting medium. We are still having the same problem. Can anyone please help. I have sent in a picture to www.histonet.org with the title "elastic fibers staining black".
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