[Histonet] RE: Histonet - Screened cassettes

Patterson, Pat PatPatterson <@t> mhd.com
Mon Jun 12 13:41:49 CDT 2006

Teri and Diane-
We have noticed the same issue you both have mentioned.  We stopped
using the screened cassettes and now have stopped using the all plastic
Micro Cassettes.  We have great biopsies for days then 1 or 2 a day
would be unprocessed - then we'd have no problems.  Just the
inconsistency of it made us move to wrapping biopsies again.

We're testing both a new processor (maybe our old VIP is part of the
problem) and new cassettes - the new McCormick cassettes.

Pat Patterson
Methodist Dallas Medical Center
patpatterson <@t> mhd.com


Message: 1
Date: Mon, 12 Jun 2006 12:11:30 -0500
From: "Johnson, Teri" <TJJ <@t> Stowers-Institute.org>
Subject: [Histonet] 	Re: Why (1 GI biopsy not processed, others are
To: <histonet <@t> lists.utsouthwestern.edu>

<C28BAF593DC3314E9C0F3A50191C2E78044B7E2B <@t> EXCHKC03.stowers-institute.org

Content-Type: text/plain;	charset="us-ascii"


Do you use screen cassettes? If so, do you make sure they are submerged,
or do you have them loose in your tissue processor chamber?

I don't know if anybody else has noticed this or has become alarmed by
it, but the screen cassettes trap solution and usually have at least one
trapped air bubble in there. It's theoretically possible one of your
biopsies are sitting up in the air bubble and not getting solution.

Teri Johnson, HT(ASCP)QIHC
Managing Director Histology Facility
Stowers Institute for Medical Research
1000 E. 50th St.
Kansas City, MO 64110



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