We are currently using a bank of formalin fixed tissue controls for our immunohistochemical stains. We have done a short study to show that the reactivity and specificity of our immunostains on the cellblocks, hardening in 95%ETOH and then transferred in formalin, is not different than our regularly formalin fixed tissue.
As I read the new CAP checklist this is what we are required to do. Now a cytopathologist wants me to maintain a set of controls only for his cellblocks.
How is everybody else handling this situation?
Memorial Medical Center
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