Try reducing the processing time and try very fine cutting and I think the 
microchatter will go.

 

 



Thanks
Prashant Sareen BS , M.B.A , HT (ASCP)
Associate Scientist III
Comprehensive Animal health Services
Bioreliance Corporation
14930 Broschart Road,

Rockville, MD 20850
Office: 301-610-2744
Histology: 301-610-2997

Cell: 240-315-5541
Email: prashant.sar...@bioreliance.com
 > From: histonet-requ...@lists.utsouthwestern.edu
> Subject: Histonet Digest, Vol 80, Issue 30
> To: histonet@lists.utsouthwestern.edu
> Date: Mon, 26 Jul 2010 10:02:53 -0700
> 
> Send Histonet mailing list submissions to
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> Today's Topics:
> 
> 1. Re: Artifacts in histology section (Joseph Saby)
> 2. Re water problem (Steven Weston)
> 3. RE: Re water problem (Goins, Tresa)
> 4. Re: Artifacts in histology section (kim.dona...@bhcpns.org)
> 5. Special Stain Storage (kristen arvidson)
> 6. RE: Special Stain Storage (Podawiltz, Thomas)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Sun, 25 Jul 2010 10:49:05 -0700 (PDT)
> From: Joseph Saby <saby_josep...@yahoo.com>
> Subject: Re: [Histonet] Artifacts in histology section
> To: Aazath Raj <aaz...@hotmail.com>, histonet@lists.utsouthwestern.edu
> Message-ID: <431113.5115...@web114420.mail.gq1.yahoo.com>
> Content-Type: text/plain; charset=iso-8859-1
> 
> What you are describing might be microchatter.  These will be sharp parallel 
> lines/cracks that run parallel to the knife edge and are only visible under 
> the 
> microscope.
> 
> The usuall cause is a combination of overprocessing and rough facing that is 
> too 
> aggressive and/or with too dull a blade.  Overprocessing makes the tissue 
> very 
> hard and somewhat brittle.  The thick sections/dull knife cause the tissue to 
> compress and then release, causing the chatter.  The actual danage is in the 
> block face.
> 
> Once you have the problem in a block, if the tissue is thick enough, you 
> might 
> be able to repeatedly soak the block in ice water and gently (with a fairly 
> sharp knife) reface.  With luck, you might be able to get through the damaged 
> block face.  
> 
> 
> Another artifact I have seen is similar, but the chatter appears very blurry. 
>  
> This is usually caused be poor fixation/processing, then oversoaking the 
> blocks 
> after facing.  The trick here is to reface the block, then chill it without 
> exposure to water.  I've sectioned such blocks after placing them in a 
> freezer 
> to chill them thoroughly.  This will help to obtain a section, but may not 
> fix 
> the staining problems that might show up later.  
> 
> 
> Good luck!
> 
> Joe Saby, BA HT
> 
> 
> 
> 
> ________________________________
> From: Aazath Raj <aaz...@hotmail.com>
> To: histonet@lists.utsouthwestern.edu
> Sent: Fri, July 23, 2010 11:26:28 AM
> Subject: [Histonet] Artifacts in histology section
> 
> 
> 
> Dear Friends,
> 
>               I am an Histology Technologist. I am having a problem 
> here,while 
> sectioning am not seeing and scoring artifacts on the section but in the 
> microscope am seeing a tearing artifacts particularly in endoscopy biopsies. 
> am 
> not able to locate where is the problem,is that because of blades or due to 
> micro-crystallization of wax or due to any processing problem. Its not 
> consistently in all but i get it on some blocks every  day. Can any one help 
> me 
> in sorting it out. If anybody is interested in will send the picture of those 
> section.
> 
> 
> 
> 
> 
> with regards,
> 
> Aazathraj.P
> 
> Technical Officer,
> 
> Apollo Hospitals-chennai
> 
> India.
> 
> aaz...@hotmail.com
> 
> 
>                         
> _________________________________________________________________
> The latest in fashion and style in MSN Lifestyle
> http://lifestyle.in.msn.com/_______________________________________________
> Histonet mailing list
> Histonet@lists.utsouthwestern.edu
> http://lists.utsouthwestern.edu/mailman/listinfo/histonet
> 
> 
> 
> 
> 
> ------------------------------
> 
> Message: 2
> Date: Mon, 26 Jul 2010 13:49:31 +1000
> From: Steven Weston <steven.wes...@utas.edu.au>
> Subject: [Histonet] Re water problem
> To: histonet list <histonet@lists.utsouthwestern.edu>
> Message-ID: <c87342eb.2535%steven.wes...@utas.edu.au>
> Content-Type: text/plain; charset="iso-8859-1"
> 
> We had this problem when we started using APTS coated slides and left out 
> adhesive from the water bath. A simple solution I have found is to add a 
> single drop of triton x100 (or similar detergent) to my full water bath and 
> mix before heating the water. This reduces the surface tension of the water 
> and allows it to run off the slide.
> Regards
> Steve weston
> Menzies Research Institute
> Hobart Tasmania, Australia
> 
> 
> ------------------------------
> 
> Message: 3
> Date: Mon, 26 Jul 2010 15:39:05 +0000
> From: "Goins, Tresa" <tgo...@mt.gov>
> Subject: [Histonet] RE: Re water problem
> To: Steven Weston <steven.wes...@utas.edu.au>
> Cc: "Histonet@lists.utsouthwestern.edu"
> <Histonet@lists.utsouthwestern.edu>
> Message-ID:
> <ca4df32ed505d94bb55e95487d8e9841049...@doaisd5205.state.mt.ads>
> Content-Type: text/plain; charset="us-ascii"
> 
> Thanks for the great tip Steve - it works great!
> 
> 
> Tresa Goins
> Veterinary Diagnostic Lab
> Department of Livestock
> Bozeman, Montana
> 
> 
> 
> -----Original Message-----
> From: histonet-boun...@lists.utsouthwestern.edu 
> [mailto:histonet-boun...@lists.utsouthwestern.edu] On Behalf Of Steven Weston
> Sent: Sunday, July 25, 2010 9:50 PM
> To: histonet list
> Subject: [Histonet] Re water problem
> 
> We had this problem when we started using APTS coated slides and left out 
> adhesive from the water bath. A simple solution I have found is to add a 
> single drop of triton x100 (or similar detergent) to my full water bath and 
> mix before heating the water. This reduces the surface tension of the water 
> and allows it to run off the slide.
> Regards
> Steve weston
> Menzies Research Institute
> Hobart Tasmania, Australia
> _______________________________________________
> Histonet mailing list
> Histonet@lists.utsouthwestern.edu
> http://lists.utsouthwestern.edu/mailman/listinfo/histonet
> 
> 
> 
> 
> ------------------------------
> 
> Message: 4
> Date: Mon, 26 Jul 2010 10:57:58 -0500
> From: kim.dona...@bhcpns.org
> Subject: Re: [Histonet] Artifacts in histology section
> To: Joseph Saby <saby_josep...@yahoo.com>
> Cc: histonet@lists.utsouthwestern.edu, Aazath Raj
> <aaz...@hotmail.com>, histonet-boun...@lists.utsouthwestern.edu
> Message-ID:
> <off4b67742.f26d1a0c-on8625776c.0057150c-8625776c.0057b...@bhcpns.org>
> Content-Type: text/plain; charset="US-ASCII"
> 
> It's very difficult to diagnosis a problem such as this without hands on. 
> But one thing that I noticed years ago that was so simple could cause 
> this. A build up of tissues on the back of the blade holder. Worth a look. 
> 
> 
> 
> 
> 
> Kim Donadio 
> Pathology Supervisor
> Baptist Hospital
> 1000 W Moreno St.
> Pensacola FL 32501
> Phone (850) 469-7718
> Fax (850) 434-4996
> 
> 
> 
> Joseph Saby <saby_josep...@yahoo.com> 
> Sent by: histonet-boun...@lists.utsouthwestern.edu
> 07/25/2010 12:49 PM
> 
> To
> Aazath Raj <aaz...@hotmail.com>, histonet@lists.utsouthwestern.edu
> cc
> 
> Subject
> Re: [Histonet] Artifacts in histology section
> 
> 
> 
> 
> 
> 
> What you are describing might be microchatter. These will be sharp 
> parallel 
> lines/cracks that run parallel to the knife edge and are only visible 
> under the 
> microscope.
> 
> The usuall cause is a combination of overprocessing and rough facing that 
> is too 
> aggressive and/or with too dull a blade. Overprocessing makes the tissue 
> very 
> hard and somewhat brittle. The thick sections/dull knife cause the tissue 
> to 
> compress and then release, causing the chatter. The actual danage is in 
> the 
> block face.
> 
> Once you have the problem in a block, if the tissue is thick enough, you 
> might 
> be able to repeatedly soak the block in ice water and gently (with a 
> fairly 
> sharp knife) reface. With luck, you might be able to get through the 
> damaged 
> block face. 
> 
> 
> Another artifact I have seen is similar, but the chatter appears very 
> blurry. 
> This is usually caused be poor fixation/processing, then oversoaking the 
> blocks 
> after facing. The trick here is to reface the block, then chill it 
> without 
> exposure to water. I've sectioned such blocks after placing them in a 
> freezer 
> to chill them thoroughly. This will help to obtain a section, but may not 
> fix 
> the staining problems that might show up later. 
> 
> 
> Good luck!
> 
> Joe Saby, BA HT
> 
> 
> 
> 
> ________________________________
> From: Aazath Raj <aaz...@hotmail.com>
> To: histonet@lists.utsouthwestern.edu
> Sent: Fri, July 23, 2010 11:26:28 AM
> Subject: [Histonet] Artifacts in histology section
> 
> 
> 
> Dear Friends,
> 
> I am an Histology Technologist. I am having a problem 
> here,while 
> sectioning am not seeing and scoring artifacts on the section but in the 
> microscope am seeing a tearing artifacts particularly in endoscopy 
> biopsies. am 
> not able to locate where is the problem,is that because of blades or due 
> to 
> micro-crystallization of wax or due to any processing problem. Its not 
> consistently in all but i get it on some blocks every day. Can any one 
> help me 
> in sorting it out. If anybody is interested in will send the picture of 
> those 
> section.
> 
> 
> 
> 
> 
> with regards,
> 
> Aazathraj.P
> 
> Technical Officer,
> 
> Apollo Hospitals-chennai
> 
> India.
> 
> aaz...@hotmail.com
> 
> 
> 
> _________________________________________________________________
> The latest in fashion and style in MSN Lifestyle
> http://lifestyle.in.msn.com/_______________________________________________
> 
> Histonet mailing list
> Histonet@lists.utsouthwestern.edu
> http://lists.utsouthwestern.edu/mailman/listinfo/histonet
> 
> 
> 
> 
> _______________________________________________
> Histonet mailing list
> Histonet@lists.utsouthwestern.edu
> http://lists.utsouthwestern.edu/mailman/listinfo/histonet
> 
> 
> 
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> ------------------------------
> 
> Message: 5
> Date: Mon, 26 Jul 2010 09:07:57 -0700 (PDT)
> From: kristen arvidson <arvidsonkris...@yahoo.com>
> Subject: [Histonet] Special Stain Storage
> To: histonet <histonet@lists.utsouthwestern.edu>
> Message-ID: <820784.89949...@web65707.mail.ac4.yahoo.com>
> Content-Type: text/plain; charset=iso-8859-1
> 
> Hello All,
> We were recently inspected by CLIA and our inspector noticed that we didn't 
> have reagent storage temperatures written in our Special Stains procedures.  
> We do our stains by hand so we do have some stored in the refrigerator and 
> others stored at room temp.  I went through some of the Histo books and I 
> cannot find any specifics on storage of reagents.  Any suggestions??
>  
> Thanks!!
> Kristen
> 
> 
> 
> 
> ------------------------------
> 
> Message: 6
> Date: Mon, 26 Jul 2010 12:53:38 -0400
> From: "Podawiltz, Thomas" <tpodawi...@lrgh.org>
> Subject: RE: [Histonet] Special Stain Storage
> To: 'kristen arvidson' <arvidsonkris...@yahoo.com>, histonet
> <histonet@lists.utsouthwestern.edu>
> Message-ID:
> <38667e7fb77ecd4e91bfaeb8d986386323d5df8...@lrghexvs1.practice.lrgh.org>
> 
> Content-Type: text/plain; charset="iso-8859-1"
> 
> That is a new one on me. It has never come up during any of our inspections. 
> 
> 
> Tom Podawiltz HT (ASCP) 
> Histology Section Head/Laboratory Safety Officer
> LRGHealthcare
> 
> 
> 
> 
> -----Original Message-----
> From: histonet-boun...@lists.utsouthwestern.edu 
> [mailto:histonet-boun...@lists.utsouthwestern.edu] On Behalf Of kristen 
> arvidson
> Sent: Monday, July 26, 2010 12:08 PM
> To: histonet
> Subject: [Histonet] Special Stain Storage
> 
> Hello All,
> We were recently inspected by CLIA and our inspector noticed that we didn't 
> have reagent storage temperatures written in our Special Stains procedures.  
> We do our stains by hand so we do have some stored in the refrigerator and 
> others stored at room temp.  I went through some of the Histo books and I 
> cannot find any specifics on storage of reagents.  Any suggestions??
>  
> Thanks!!
> Kristen
> 
> 
> 
> _______________________________________________
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> Histonet@lists.utsouthwestern.edu
> http://lists.utsouthwestern.edu/mailman/listinfo/histonet
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> 
> 
> 
> 
> ------------------------------
> 
> _______________________________________________
> Histonet mailing list
> Histonet@lists.utsouthwestern.edu
> http://lists.utsouthwestern.edu/mailman/listinfo/histonet
> 
> End of Histonet Digest, Vol 80, Issue 30
> ****************************************
                                          
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