[Histonet] immuno controls for cell blocks

[Vickroy, Jim]

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?

Jim Vickroy
Memorial Medical Center
Springfield, Illinois.




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