[Histonet] ER/PR question

[Allan Wang]

The antigen doesn't decay much inside the tissue block, as long as the
sections were freshly done. We redo ER/PR on archived samples from 15 years
ago and they still stain very strongly.

Allan

On Thu, Feb 7, 2019 at 8:26 AM Heckford, Karen - SMMC-SF via Histonet <
histonet at lists.utsouthwestern.edu> wrote:

> Good Morning,
> One of my Pathologists wants me to do some ER/PR's on 9 year old tissue
> blocks.   I know ER and PR can be sensitive are the IHC's going to work or
> will there be too much antigen decay?
>
> Thanks,
>
> Karen Heckford HT ASCP CE
> Lead Histology Technician
> St. Mary's Medical Center
> 450 Stanyan St.
> San Francisco, Ca. 94117
> 415-668-1000 ext. 6167
> karen.heckford at dignityhealth.org
>
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