Tom,

I started in diagnostic EM in 1982 at a community hospital and teaching 
center. We did 5,000 surgical per year and 150 cases went to EM. There was a 
50/50 mix of tumor diagnostics and kidney diagnostics. We started 
immunochemistry that year and did about 2 cases per week (about 100 for the 
year).

By 1993 (when I left that hospital) we were doing about 7,000 surgicals but 
our EM load had dropped to about 90 cases per year, 85 of which were kidney 
biopsies. Our immuno's, which were primarily tumor diagnostics, rose to 
about 3 cases per day, or about 800 per year.

The mix is still the same from the news I get from my old collegues at that 
hospital.


----Original Message Follows----
From: Tom Kuwahara <tom@adpath.com>
To: Patsy.Ruegg@UCHSC.edu
CC: histonet@Pathology.swmed.edu
Subject: Immunohistochemistry(IHC) vs Electron Microscopy
Date: Mon, 14 Jun 1999 15:35:06 -0700

Dear Histonetters: After talking to several people & companies, I think
I asked the wrong question as to coming up with any kind of figure for
total amount of tissue use for IHC in the US  would be difficult and
companies view sales figures of AB's as proprietary information.  So my
new questions are: if your institution, research, clinical, animal,
etc.,uses BOTH electron microscopy and IHC testing, what percentage of
your testing is for IHC(light microscopy) and what percentage for EM, or
both(EM IHC).  Has this changed over the last 10 years?  I am doing
research for an article and would appreciate any feedback you out there
doing both EM and IHC can give me.  Thanks in advance,
Tom Kuwahara


Patsy.Ruegg@UCHSC.edu wrote:
 >
 > Tom,
 > That would be difficult to estimate.  Your best source I would think 
would
 > be the antibody companies, how much product do they sell in the US?  This
 > would vary from site to site.  Universities and research facilities do a 
lot
 > more than big city private hospitals, and outlying areas may do none at 
all.
 > I would ask some of the main players (DAKO, Ventana, Sigma, ETC.) about 
how
 > much product they sell in the USA.  What is this for?
 > Patsy Ruegg
 >
 >                 -----Original Message-----
 >                 From:   Tom Kuwahara [mailto:tom@adpath.com]
 >                 Sent:   Monday, June 14, 1999 8:39 AM
 >                 To:     HistoNet Server
 >                 Subject:        Amount of IHC performed in USA
 >
 >                 Dear Histonetters:  Is there anyone out there who could
 > point me toward
 >                 a source, person, expert, website, etc.,that could give 
me
 > an estimate
 >                 on how much IHC is done in the US per year?  Patsy Ruegg,
 > would you have
 >                 an idea?  Thanks in advance for any advice you can give 
me.
 > Regards,
 >                 Tom
 >                 --
 >                 *******************************
 >                 Thomas J. Kuwahara
 >                 Senior Immunohistochemist
 >                 Advanced Pathology Systems
 >                 3801 Sacramento St. suite 621
 >                 San Francisco, CA 94118
 >                 415 750 6800 x23067 tel
 >                 415 750 2332 fax
 >                 tom@adpath.com

--
*******************************
Thomas J. Kuwahara
Senior Immunohistochemist
Advanced Pathology Systems
3801 Sacramento St. suite 621
San Francisco, CA 94118
415 750 6800 x23067 tel
415 750 2332 fax
tom@adpath.com



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