My wife was found to be +2-+3 using IHC and is currently awaiting a response on a FISH test.
As far as I know a tissue sample (that was removed during surgery 10/03) was sent to an outside lab that does the FISH test. It seems that because of the cost involved there are only a few places that do this test. It is found to be much more reliable than the IHC.
Hope this helps.
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