[Histonet] Heat and Tissue Arrays
The only problem we have noticed in a loss of staining is if slides
were made months prior to staining. If specimens are left in the
paraffin block they seem to be fine when cut just before staining.
Often we will make controls ahead and put them in the fridge to help
preserve their staining properties. Frozen sections are not an option
for us since we as well as all major institutions use paraffin
processed blocks for routine specimens. Frozens are only created for
special tests and quick diagnosis. It would be expensive if not
impossible for us to story thousands of frozens like we are able to
store paraffin tissue blocks.
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