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A very excited welcome to our new editor for the Diagnostic Exercises!
by Bruce Williams June 4, 2020

June 4, 2020

The Davis-Thompson Foundation is delighted to announce that Dr Claudio Barros, a legend in the field of veterinary pathology, will be the new Editor In Chief of the Diagnostic Exercises of the Davis Thompson Foundation and the Latin Comparative Pathology Group. (http://www.cldavis.org/diag_exercise.html) Dr. Barros will take over for Dr Vinicius (Vini) Carreira who served in this role brilliantly for 10+ years and who, together with the Editorial Board, took the DE to the high level and reputation they enjoy today all over the world. Thank you Vini!! Dr. Barros graduated in Veterinary Medicine from the Federal University of Santa Maria, Brazil, in 1969. He then received his PhD in Veterinary Pathology at Colorado State University in 1980, and did a Post-Doctorate at the Veterinary Pathology Institute of Justus Liebig Universität Giessen, Germany, in 1984. He was a Professor of Pathology at the Federal University of Santa Maria, Rio Grande do Sul, Brazil (1971-2014), and Visiting Professor at Federal University of Mato Grosso do Sul, Brazil (2014-2020). Amongst his many accolades, Claudio was a Member of the Consulting Scientific Committee for Transmissible Spongiform Encephalopathies to the Brazilian Ministry of Agriculture, Livestock and Supply and a member of the Brazilian College of Animal Pathology. He is an Emeritus Member of the Brazilian Association of Veterinary Pathology and Honorary Member of the American College of Veterinary Pathologists. He was the Editor in Chief of “Pesquisa Veterinária Brasileira” (Brazilian Journal of Veterinary Research) for many years. He was the recipient of the Paulo Dacorso Filho award, 2016 edition, conferred by the Federal Council of Veterinary Medicine of Brazil. Claudio has been a teacher and mentor of many generations of Brazilian pathologists and he is one of the greatest pathologists in Latin America and the world. Welcome Claudio!!! Within the next few weeks we will provide instructions on submission of DEs under the new Editor in Chief. In the meantime, please continue sending your DE to Dr Carreira as usual. Kind regards, Paola Barato, President-elect LCPG Paco Uzal, President LCPG Bruce Williams, CEO, Davis-Thompson Foundation The Diagnostic Exercises are an initiative of the Latin Comparative Pathology Group (LCPG), the Latin American subdivision of The Davis-Thompson Foundation. These exercises are contributed by members and non-members from any country of residence. Consider submitting an exercise! A final document containing this material with answers and a brief discussion will be posted on the CL Davis website http://www.cldavis.org/diagnostic_exercises.html Editorial Committee.

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Jun 19th Are Friday Seminar - Pathology of Camelids!
by Bruce Williams June 4, 2020

June 4, 2020

The Foundation invites you to our Jun 19th "Free Friday Seminar" from 12:00-1:30PM EDT and it's going to be fabulous, and it going to be on "Pathology of Camelids". This lecture, presented by Dr. med. vet. Christiane V. Löhr, PhD., Diplomate ACVP, Fachtierarzt Pathologie, and professor of Pathology at Oregon State University will provide a general review of the main diseases of South American camelids, with special emphasis on those occurring in North America. Gross and microscopic features of these diseases, with special emphasis on diagnostic aspects will be provided, as well as information on species-specific anatomic and physiologic "peculiarities" This seminar will provide useful information for clinicians, trainees and practicing pathologists working with South American camelids. Register in advance for this webinar: https://us02web.zoom.us/webinar/register/WN_Ed8msVx2TZufzjHFUtgJBg <https://us02web.zoom.us/webinar/register/WN_Ed8msVx2TZufzjHFUtgJBg?fbclid=I…> After registering, you will receive a confirmation email containing information about joining the webinar.

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Zo and aquatic animals diseases - June 9th - 8 hours of CE!
by Bruce Williams June 4, 2020

June 4, 2020

The Foundation's June 9 Virtual Day Seminar is a full day on Diseases of Zoo and Aquatic Animals, and we have a fantastic lineup for you! Plus(!) you can get 8 hours of RACE CE for only $50 if you sign up (and a beautiful certificate of attendance - if you print it on beautiful paper.) Register in advance for this webinar: https://us02web.zoom.us/webinar/register/WN_RVBQirwVR1qGpUznUAAr7w <https://us02web.zoom.us/webinar/register/WN_RVBQirwVR1qGpUznUAAr7w?fbclid=I…> After registering, you will receive a confirmation email containing information about joining the webinar. PLEASE NOTE: These lectures will be rebroadcast for ONLY 48 hours following their completion. —

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Free Friday Seminar - 12 June - Tumors of the Peripheral Nervous System
by Bruce Williams June 3, 2020

June 3, 2020

We are excited to announce our Jun 12th "Free Friday Seminar" - "Tumors of the Peripheral Nervous System", presented by Dr. Kevin Woolard DVM, PhD, DACVP of the College of Veterinary Medicine, University of California at Davis. Dr Woolard will describe gross and microscopic features of common primary tumors of the peripheral nervous system in domestic animals. The origins of these tumors will be discussed, along with a special emphasis on distinguishing histologic and immunohistochemical features. This seminar will provide all the information that trainees and practicing pathologists and clinicians need in their daily routine to establish an adequate diagnosis when confronted with tumors of the peripheral nervous system. Register in advance for this webinar: https://us02web.zoom.us/…/register/WN_VlkMKizPTXyq1Ax7fKY_Pg <https://us02web.zoom.us/webinar/register/WN_VlkMKizPTXyq1Ax7fKY_Pg?fbclid=I…> After registering, you will receive a confirmation email containing information about joining the webinar. And don’t forget about this Friday’s seminar - Professor Emeritus Paul Stromberg of The Ohio State University will present: "Cognitive errors in veterinary diagnostic pathology: why we make mistakes and how to mitigate the risk." Diagnostic errors in medicine are more common than we want to admit. This lecture discusses the common Errors we make as diagnostic pathologists. It presents gross and microscopic images the viewers can analyze to see if they make the correct interpretation as examples of the common mistakes, then discusses how to minimize your likelihood of error. Want to improve your accuracy? Sign in and see how to improve your skills. Register in advance for this webinar: https://us02web.zoom.us/…/register/WN_a7bGjk2IT46nN76GrJOKmw <https://us02web.zoom.us/webinar/register/WN_a7bGjk2IT46nN76GrJOKmw?fbclid=I…>

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Passing of Dr. David Tyler, University of Georgia College of Veterinary Medicine
by Bruce Williams June 1, 2020

June 1, 2020

[image: 101642376_10158689158712873_8770691911309590528_n.jpg] It is with a heavy heart that I announce the passing of Dr. David Tyler, Joshua Meigs Distinguished Professor of Pathology at the College of Veterinary Medicine at the University of Georgia. In addition to a distinguished teaching career, and being one of the two founders (with Dr. Wayne Crowell) of Noah's Arkive, which has served countless veterinarians around the world for over thirty-five year, Dr. Tyler inspired countless young veterinary students to pursue a career in veterinary pathology, including one young CPT Bruce Williams, who knew after his first two tours in the Army, that a career in pathology was what he wanted to pursue.. Dave Tyler was one of the kindest professors I ever met, and he brought pathology "back to life" on a daily basis. I never had the chance to tell him how in four years of veterinary school with many outstanding teachers, he was the one who inspired me, but I hope that I have done him proud. His obituary: "David Earle Tyler went to be with the Lord on May 26, 2020. The third son of the late Guy Earl Tyler and Beatrice Virginia (Slack) Tyler, he was born in Hartford, Iowa. He graduated from Hartford High School in 1946. He served in the Army at the end of World War II as an MP in Alaska. Following his military service, he enrolled at Iowa State University (ISU). He earned both a B.S. in Animal Husbandry and a Doctorate of Veterinary Medicine at ISU. During his studies at ISU, David met his sweetheart, LaVon Smith whom he married in 1952. They remained married for 66 years until LaVon's death. Following graduation from ISU, Dr. Tyler joined the faculty at Purdue University as an instructor in veterinary science. While at Purdue, he earned his M.S. degree. David then returned to his alma mater to join the faculty in the veterinary pathology department. During his time as a faculty member at ISU, he completed his Ph.D. degree and became a Diplomate of the American College of Veterinary Pathology. In 1966, he was recruited to become the head of the veterinary pathology department at the University of Georgia (UGA). He accepted the challenge and the whole family moved south to Athens, Georgia. He spent the remainder of his professional career at the UGA, College of Veterinary Medicine until his retirement in 1991. David was a highly respected scientist, veterinarian, and teacher. It was his role as a teacher that particularly brought joy to his professional life. His excellence as an educator was acknowledged on multiple instances by his students and his colleagues. He was named a Josiah Meigs Distinguished Teaching Professor by the University of Georgia. This is the highest honor for excellence in instruction at UGA. He was also the inaugural winner of the national Zoeitis Distinguished Veterinary Teacher Award. David was a master woodcarver and enjoyed teaching carving to friends and his colleagues. He also enjoyed traveling abroad with LaVon, and gardening at their home on Sunnybrook Drive. He was a member of the First Christian Church, Disciples of Christ in Athens, Georgia for 46 years where he served as an elder. He and LaVon became members of the Grace Community, United Methodist Church following their move to Fort Mill, South Carolina to be closer to family in 2012. David was a loving husband, father, grandfather and great-grandfather who supported and protected his family. He is survived by his sister Georgene Tyler Fawcett; son John Tyler; daughter Anne Tyler Sink; two grandchildren Christina Sink Smith and Laura Sink; great-grandson Ian Smith; sister-in-law Martha Tyler; son-in-law Merritt Sink and grandson-in-law Tyler Smith. For family members, there will be a service at Peterson's funeral home in Carlisle, Iowa on Saturday, June 6, 2020 at 2 PM. Social distancing and cloth masks will be part of the service. Video streaming of the service will be available for those not able to attend. Graveside services will follow at the Hartford Cemetery. In lieu of flowers, the family request donations to be made to the Grace Community United Methodist church of Fort Mill, South Carolina or the First Christian Church, Disciples of Christ in Athens Georgia.

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Day Seminar on Zoo and Aquatic Animals - Tuesday 9 June
by Bruce Williams May 31, 2020

May 31, 2020

The Foundation's June 9 Virtual Day Seminar is a full day on Diseases of Zoo and Aquatic Animals, and we have a fantastic lineup for you! Plus(!) you can get 8 hours of RACE CE for only $50 if you sign up (and a beautiful certificate of attendance - if you print it on beautiful paper.) Register in advance for this webinar: https://us02web.zoom.us/webinar/register/WN_RVBQirwVR1qGpUznUAAr7w After registering, you will receive a confirmation email containing information about joining the webinar. PLEASE NOTE: These lectures will be rebroadcast for ONLY 48 hours following the lecture completion.

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Rebroadcast for June 5 virtual seminar - Cognitive errors in veterinary diagnostic pathology
by Bruce Williams May 31, 2020

May 31, 2020

On 12PM EDT ON 5 June 2020, Professor Emeritus Paul Stromberg of The Ohio State University will present: "Cognitive errors in veterinary diagnostic pathology: why we make mistakes and how to mitigate the risk." Diagnostic errors in medicine are more common than we want to admit. This lecture discusses the common Errors we make as diagnostic pathologists. It presents gross and microscopic images the viewers can analyze to see if they make the correct interpretation as examples of the common mistakes, then discusses how to minimize your likelihood of error. Want to improve your accuracy? Sign in and see how to improve your skills. Register in advance for this webinar: https://us02web.zoom.us/…/register/WN_a7bGjk2IT46nN76GrJOKmw <https://us02web.zoom.us/webinar/register/WN_a7bGjk2IT46nN76GrJOKmw?fbclid=I…> After registering, you will receive a confirmation email containing information about joining the webinar. Please note that this seminar will be rebroadcast on (and only on) Saturday June 6 and Sunday June 7. No accommodations can or will be made.

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Free Friday Seminar - 28 May - Immune-mediated drug-induced liver injury
by Bruce Williams May 28, 2020

May 28, 2020

You are invited to a "Free Friday Seminar" on 29 May at 1200 hrs EDT sponsored by the Latin Comparative Pathology Group. This virtual seminar is entitled "Pathology of immune-mediated drug-induced liver injury in immuno-oncology checkpoint inhibitor combination", and is presented by Timothy Affolter, DVM, PhD, DACVP of Global Pathology, Pfizer Drug Safety Research and Development, La Jolla, CA. Immune checkpoint inhibitors (CPI) are the cornerstone drugs of immuno-oncology and generally act by promoting T cell activation with subsequent tumor cell killing. Current animal models under predict the incidence and severity of immune-related adverse events observed with CPI drug combinations in the clinic. We have developed a novel mouse model that closely recapitulates these immune-mediated adverse events in the setting of a combined checkpoint blockade. Co-administration of a CTLA4 blocking antibody and an IDO1 inhibitor to PD1 knockout mice drives inflammation and necrosis in the liver, and more sporadically in other tissues, with histopathologic phenotypes similar to what has been reported clinically. Immunophenotyping of the inflammation revealed an expanded oligoclonal population of CD8+ T cells, with elevated ICOS and CD44 expression. Several novel technologies including laser capture microscopy, digital image analysis, and single cell transcriptomic analysis were used to further characterize the expression of several activation and exhaustion markers in infiltrating CD8+ T cell population. Global depletion of CD8+ T cells attenuated CPI-induced liver injury. Register in advance for this webinar: https://us02web.zoom.us/webinar/register/WN_hg77GG38T_2Jh5Kg7m6Hog?fbclid=I… <https://us02web.zoom.us/webinar/register/WN_hg77GG38T_2Jh5Kg7m6Hog?fbclid=I…>

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Free Friday Seminar 5 June: Cognitive errors in veterinary Medicine
by Bruce Williams May 28, 2020

May 28, 2020

Here's a great "Free Friday Seminar" that EVERYONE needs to see. On 12PM EDT ON 5 June 2020, Professor Emeritus Paul Stromberg of The Ohio State University will present: "Cognitive errors in veterinary diagnostic pathology: why we make mistakes and how to mitigate the risk." Diagnostic errors in medicine are more common than we want to admit. This lecture discusses the common Errors we make as diagnostic pathologists. It presents gross and microscopic images the viewers can analyze to see if they make the correct interpretation as examples of the common mistakes, then discusses how to minimize your likelihood of error. Want to improve your accuracy? Sign in and see how to improve your skills. Register in advance for this webinar: https://us02web.zoom.us/…/register/WN_a7bGjk2IT46nN76GrJOKmw <https://l.facebook.com/l.php?u=https%3A%2F%2Fus02web.zoom.us%2Fwebinar%2Fre…>After registering, you will receive a confirmation email containing information about joining the webinar.

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Davis-Thompson Foundation June Newsletter
by Bruce Williams May 28, 2020

May 28, 2020

The June version of the Foundation’s newsletter marks a new first - all of the course recaps are of our new “Free Friday seminars” and full Day-seminars. Also included are flyers for upcoming teleconferences, including this year’s versions of the annual Descriptive Course and Pathology of Lab Animals, and others. Some flyers for later this year are advertising coursesfor which final decisions have not yet been made (traditional, teleconference, or postponement) as we wait for more information on venues or meetings that they are attached to. With very best wishes for the continued health of you and yours, Bruce Williams, DVM CEO, Davis-Thompson Foundation

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