Pathology and laboratory medicine

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Archive for March, 2011

Rectal Bleeding

I have seen a description of a condition which sounds like prolapsed
hemorrhoids, accompanied by profuse bleeding.

I am not a medical professional.

Can anyone confirm that such a condition can exist?

The woman was reported to have bled profusely from the rectum after
drinking (probably a considerable amount of) alcohol.

Can anyone confirm that such a condition is medically plausible?

- Whippersnapper

.
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Recommendations on microscopes?

I’m looking to buy a 2-headed microscope for looking at tissue sections.
What do people recommend?  Approximate prices would be helpful.
Thanks!

———————————————————
Peter Wang, M.D., Ph.D.
MRC Centre for Protein Engineering,
Hills Road, Cambridge, CB2 2QH, England

Tel (01223) 402100  (international calls +44-1223-402100)
    (01223) 402104  (direct number)
Fax (01223) 402140
———————————————————

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Perinatal Pathology.

I am also a perinatal pathologist interested in developing links with
other perinatal pathologists over the WWW.
C. Platt

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mysterywriter needs help

if i have reached pathologists with a few spare minutes —- i am a
mystery writer ("Horse of a Different Killer") who needs a pathology
question answered for my second book. What does a very diseased (cancer)
human lung look like? Please be as descriptive as possible, preferably
give me some comparisons, such as it feels like an overcooked ribeye
steak….. Size, shape, texture, color, smell etc. And how easy would it
be for someone in the medical business to get hold of a some diseased
lungs? how easy for the non-medical person to get a hold of lungs?
thank you
jodyja…@aol.com

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VZV or HSV mcAb Needed!

I am having no success with polyclonals for fixed tissue identification of
herpes or zoster infections.  Does anyone know of a source of monoclonals
that may do the job for me?

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POSITIONS

Positions to open from Senior PhD Group Leader to technicians.  A small
growing Biotech Company specializing in In Vitro Diagnostic Kits and
Reagents for the detection of virus antigens will be looking for top
candidates.  The company currently offers over 30 products one of which
has been approved by the FDA to market.  Products include human herpes
virus-specific monoclonal and polyclonal antibodies, antigens, viral cell
lysates, primers, probes and target DNA.  For more information send to fax
(815) 395-1473.

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Advice for a young pathology lover

Hello.  I’m half way through my 3rd year of medical school.  I’ve been trying to decide on a residency for a while and all roads lead to pathology.  All but
one, that is.  My only concern is the job market that appears bleak for all
specialties.  My school thrusts large amounts of propaganda at us to go into
primary care.  I feel as though I COULD do primary care, but I’d MUCH RATHER
do path.  So I can choose between doing what I want, and not having a job, or
settling for something I don’t want as badly but is more secure.

I know nobody has a crystal ball and I doubt anybody will talk me out of
path…but I was interested in knowing how people felt about this issue
outside of my state.  I’m especially interested in what the private sector
thinks…that’s a viewpoint that is hard to obtain within medical school.

Thanks in advance for any insight you mihg  (might) offer.

Ross Keener
v…@rex.re.uokhsc.edu

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Re: Are pathologists to blame for H. pylori fiasco?

Dr. Dr. Brad H. brought up some very important and disturbing
questions regarding whether pathologists really give much
thought to what they are looking at every day.  H. pylori
was chosen as an example of something that was there for us
to see, but which went unheeded for decades until someone
made the connection between H pylori and gastritis.

Prostatitis may be another lesion that we see without
understanding.  Dr. Dr. Brad H. describes a friend of his with a
many year history of prostatitis, a rising PSA level and a
prostatectomy for what turned out to be a small focus of
cancer.  Are pathologists overlooking prostatitis just as we
overlooked H. pylori?  Are pathologists making adequate use
of the archived pathology tissue that must accumulate with
the many prostate biopsies performed each year?

It is very difficult for any pathologist to study a
biological problem that leads to some conclusion about the
causal relationship between an observed morphologic feature
and a particular disease process.  Just look at any
pathology journal.  You’ll see lots and lots of case
reports, reports of series of odd lesions, new morphologic
variants of old lesions, and studies of old lesions using
new laboratory techniques, but very few studies of basic
disease processes.  In two recent studies that came out of
our lab, we showed that most of the articles in the
pathology literature are unfunded works.  Furthermore, most
of the citations to articles in the pathology literature are
made to unfunded works.[refs]

Well designed studies that resolve questions of biologic
causality require time and money, two commodities in very
short supply.  There is ample literature showing that the
expectation of getting an investigator-initiated grant
is decreasing, the numbers of
young professionals receiving grants is decreasing, and
the expectation that Congress will be doing anything to
change this trend is decreasing.  Furthermore, University
Hospitals, once a santuary for unfunded researchers, are
no longer in a position to carry out unfunded research.
University Hospitals are competing for low-bid managed care
contracts and there is very little slack for research that
extends from clinical observations. It is my general
observation that many academic centers are looking for ways
of decreasing their staffs.  They know that hiring a
pathologist with the hope that the pathologist will bring in
more than his/her salary in grant money is a long-shot these
days.  It is my feeling (correct me if I am wrong) that
Academic centers are trying to get maximal service work out
of their staff (by reducing staff size) and that research
pursuits are falling more or less into the realm of a diversion
or hobby.  Regarding the current crop of pathology
residents, there seem to be very few who are interested in
issues of experimental design, statistics, critical review
of research articles related to disease causality … maybe
they’ve seen the writing on the wall.

Regarding the role of prostatitis in elevated PSA’s and
prostatic carcinogenesis, our lab recently published several
articles on the high PSA issue.  In one of our
submissions, we noted that we were seeing some very high PSA
levels in patients with negative prostate biopsies.  We
tried to list the non-cancer causes of elevated PSA and
included prostatitis and prostatic infarction (a not
uncommon sequela of prostatic hyperplasia).  The reviewer
objected, saying that we had not provided any experimental
evidence to show that these conditions resulted in elevated
PSA.  The paper was rejected, and it took us about a year to
get it accepted elsewhere (and another year to see our papers in
print). [refs] My point is, reviewers can be very harsh when it
comes to casual observations, and unless the investigator is
ready and willing to go all the way to experimentally satisfy
the objections of reviewers, it can be  very difficult to use
journal publicatons as a forum for any kind of speculation.

Dr. Dr. Brad H. also made reference to how well pathologists use the
vast amount of tissue received in their laboratories.  This
issue is near and dear to my heart.  For several years, Dr.
Bill Moore and myself have been crusading for the use of
pooled surgical pathology and autopsy databases that could
be used for epidemiologic studies, as well as studies
related to disease processes.[refs]  Each record
would consist of a case identifier (encrypted to hide
patient identification), demographics (age, gender, race),
and encoded diagnoses (SNOMED or ICD).  As it stands now,
pathologists don’t have access to anyone’s pathology data
other than their own, and many pathologists don’t have much
access to their own data (because they do a bad job at
SNOMED coding, or their search software is bad, or their
LIS just doesn’t support database studies).  So yes, many
thousands of prostate biopsies are performed in this
country, but each pathologist’s access to all those biopsies
is very limited.

Finally, regarding the pathologist’s seemingly perfunctory
remark about Dr. Dr. Brad H.’s friend’s prostatitis,
(in the surgical pathology report)  the pathologist
is seldom given the full history of the patient who comes to
prostectomy.  The pathologist must fulfill his main task of
documenting cancer and providing a description of the extent
of disease.  Unless the surgeon conveyed an interest in
prostatis, it would be unlikely that the pathologist would
make much of an issue about inflammation.  However, since
only a small focus of cancer was found in the prostatectomy
specimen, it would seem prudent to review the original
biopsy.  Granulomatous prostatitis can mimic cancer.

In conclusion, are pathologists now in a position to make
new, clinically useful observations based on observations
on tissue samples received in the course of their practice?
Mmmmmmm, maybe not.  But at least pathologists today have a
forum for observations (half-baked or otherwise)…. THE
INTERNET.  Nothing stops anyone from writing a Newsgroup
letter asking for corroboration or input from pathologists
and other health professionals.  Even if the feedback isn’t
always constructive, it is always fast.

REFERENCES

PAPERS

Moore GW,  Berman JJ.  Automatic SNOMED Coding.
Journal of the American Medical Informatics Association
(JAMIA), Symposium Supplement 1994 and the Proceedings
of the 18th Annual  Symposium for Computer Appllications
in Medicine (SCAMC),  pp 225-229, 1994.

Berman JJ, Moore GW, O’Neill T, Liebelt A,
Saffiotti U. Registry of Experimental Cancers of the
National Cancer Institute: a database resource for
cancer research.  American Journal of Pathology
142:351-352, 1993.

Borkowski A, Berman JJ, Moore GW.  Unfunded
pathology research: its frequency and success in
the scientific literature. Modern Pathology
5:577-579, 1992.  This article was abstracted in
the Yearbook of Pathology and Clinical Pathology,
1994, eds. WA Gardner, Jr., BD Bennett, JB Cousar,
AJ Garvin, GF Worsham, Mosby, St. Louis, p 5, 1994.

Moore GW, Berman JJ.  Automatic versus manual
SNOMED coding: quantitating the differences.  Am J
Clin Pathol 101:253-256, 1994

Berman JJ, Moore GW, Alonsozana ELC, Mamo GF.
Elevated prostate specific antigen and the negative
prostate biopsy.  Southern Medical Journal,
87:290-291, 1994

Berman JJ, Borkowski A, Rachocka H, Moore GW.
The impact of unfunded research in pathology,
surgery and medicine. Southern Medical Journal
88:295-299, 1995

Berman JJ, Alonsazana, Brown L, Moore GW.
PSA screening for prostate cancer: lack of reduction
in Gleason scores. Modern Pathology 7:487-489, 1994

Berman JJ, Moore GW, Donnelly WH, Massey JK,
Craig B. A SNOMED analysis of three years’
accessioned cases of (40,124) of a surgical pathology
department: implications for pathology-based
demographic studies.  Journal of the American
Medical Informatics Association (JAMIA), Symposium
Supplement 1994 and the Proceedings of the 18th
Annual  Symposium for Computer Appllications in
Medicine (SCAMC),  pp 188-192, 1994
2:34-36, 1994

Berman JJ, Moore GW.  SNOMED-Encoded surgical pathology
databases: a tool for epidemiologic investigation. In press,

ABSTRACTS

Anderson V, Lubowsky J, Cobham A, Greco MA,
Moore GW, Berman JJ.  Multi-institutional pediatric
AIDS autopsy database using natural language retrieval.
Mod Pathol 5:143A, 1993.

Moore GW, Hutchins GM, Berman JJ. Object oriented
programming system for autopsy retrieval.  Modern Pathol
5:100A, 1992 and Lab Invest 66:100A, 1992.

Borkowski A, Berman JJ, Moore GW.  Unfunded pathology
research: its frequency and success in the scientific
literature. Modern Pathol 5:100A, 1992 and Lab Invest
66:100A, 1992.

Moore GW, Hutchins GM, Berman JJ.  Object-oriented
retrieval system for the Johns Hopkins autopsy database.
MedInfo 92, Lun KC, Degoulet P, Piemme TW, Rienhoff, eds.
Elsevier, Amstedam, 1992, p 1613.

Berman JJ, Moore GW, Alonsozana ELC, Mamo GF.  Elevated
prostate specific antigen and the negative prostate biopsy.
Modern Pathol 6:56A, Jan., 1993

Berman JJ, Borkowski A, Moore GW. (letter appearing
under correspondence title Unfunded research? I am Shocked,
Shocked!) JAMA July 7, 270:44-45, 1993

Berman JJ, Borkowski A, Moore GW. Correspondence
re: T.J. Flotte.  Research by Pathologists in the United
States: analysis of publications.  Mod Pathol 6:484, 1993.
Modern Pathol 7:887-888, 1994.

Berman JJ, Borkowski A., Rachocka H., Moore G.W.
Unfunded research by pathologists, internists and surgeons.
Modern Pathology 7:69A (inclusive), 1994

Berman JJ, Moore G.W., Alonsozana E.L.C., Brown L.A.
Prostate specific antigen screening for prostate cancer:
no drop in Gleason scores.  Modern Pathology 7:162A
(inclusive), 1994

Berman JJ,  Moore GW.  PSA screening for prostate
cancer: lack of reduction in Gleason scores. (Letter)
Lancet 343:728-729, 1994

Berman JJ,  Moore GW,  Donnelly WH,  Massey, JK,
Craig B.  SNOMED Analysis of 40,124 Surgical Pathology
Cases.  Am J Clin Pathol 102:539-540, 1994

Berman JJ,

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Scavenger Hunt question – Help!

I’m working on a Scavenger Hunt, and one of the items is a label from
a grocery product containing Ethylenediamine Dihydroiodide.

Anyone know what the heck this compound is??  I have looked in
indexes and asked Food Science people with no luck.  It is not
necessarily in food, i.e. it could be in floor polish, or anything
sold at a supermarket.

Our deadline is Wednesday Dec. 13, so if you have any ideas please
e-mail me directly A.S.A.P.  Thanks a lot!

Claudia Schaefer                        
Cliff Ecology Research Group            
Department of Botany                    cscha…@uoguelph.ca
University of Guelph
Guelph, Ontario, Canada  N1G 1E2
________________________________________________________________

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Query about analysing THC in semen.

Hello,

Do any of the readers have any information regarding the analysis of THC
(Canabanoids) in semen.  I have been asked to make this enquiry on behalf
of a colleague.  Any information gratefully accepted.

Thanks in advance,

Bill McConnell MSc.
Medical Scientist at Royal Perth Hospital.

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