We discussed this problem of weekend fixation of breast tissue (about 54 hrs in
10% NBF) with our Reference Lab and they reassured us that ER/PR IHC wouldn't
be a problem. However, when ordering Her2, select FISH method instead of IHC.
(Otherwise, if it is fixed for less than 48 hrs we would ord
The CAP has the following to say about this issue (in the FAQ section
on HE= R2 testing):
"The CAP Immu= nohistochemistry
Committee does not advocate
transferring formalin-fi= xed tissues into
alcohol. There are
no data to support the validity= of testing specimens
proces
