Paraffin sections will not survive the electron beam. You will need to melt out the paraffin and dissolve out the remaining paraffin in the tissue with xylene. After removing the paraffin, the tissue will need to be taken back through alcohols and rehydrated.Then it will need to be post-fixed in osmium and processed through to a plastic embedding media such as epon or araldite.The micrograph quality will not be as good as the tissue initially being fixed in gluteraldehyde, but it can be done.Paula Pierce, HTL(ASCP)HTExcalibur Pathology, Inc. 630 N. Broadway Moore, OK 73160 405-570-6679 405-759-3953 contact@excaliburpathology.com
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