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DTF-LCPG #271 – Answer Sheet
by Claudio Barros Nov. 15, 2025

Nov. 15, 2025

Dear All, Attached is the *Answer Sheet *for Diagnostic Exercise #*2**71, *contributed by Juan Diego Hidalgo Dittel1, DVM; Roger Such Basiana2, DVM, Laura G. Bass 3,4,6, DVM, MSc; Gaby Dolz-Wiedner5, DVM, PhD; Antony Solórzano-Morales5, Biol, MSc; Roberto W. I. Olivares1,6, DVM, EdS, PhD, DACVP 1-Servicio de Patología Diagnóstica LAPAVET-ESFA, Cátedra de Patología e Histología, Escuela de Medicina y Cirugía Veterinaria San Francisco de Asís, Universidad Veritas, Vázquez de Coronado, San José, Costa Rica. 2-Jaguar Rescue Center, Puerto Viejo, Limón, Costa Rica. 3- Maestría en Enfermedades Tropicales, Posgrado Regional en Ciencias Veterinarias Tropicales (PCVET), Universidad Nacional (UNA), Heredia, Costa Rica. 4- Cátedra de Microbiología e Inmunología, Escuela de Medicina y Cirugía Veterinaria San Francisco de Asís, Universidad Veritas. Vázquez de Coronado, San José, Costa Rica. 5-Laboratorio de Zoonosis y Entomología, Escuela de Medicina Veterinaria, Universidad Nacional (UNA), Heredia, Costa Rica. 6- Current position: California Animal Health & Food Safety Laboratory System – UC Davis. *Corresponding author*: E-mail: rwolivares(a)ucdavis.edu The Diagnostic Exercises are an initiative of the Latin Comparative Pathology Group (LCPG), the Latin American subdivision of The Davis-Thompson Foundation. Members and non-members from any country of residence may contribute to these exercises. Please consider contributing a case to this initiative. It does not have to be unusual, and all pathology sub-specialties are welcome! Please consult instructions on how to format and submit your DE at https://davisthompsonfoundation.org/diagnostic-exercises-instructions/ Previous cases are available at https://davisthompsonfoundation.org/diagnostic-exercise/

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DTF-LCPG # 273 – Question Sheet
by Claudio Barros Nov. 15, 2025

Nov. 15, 2025

Dear All, Attached is the *Question Sheet *for Diagnostic Exercise #* 273**, * contributed by Carmina Migoni1, Michelle Rubio Sánchez2, Francisco A. Uzal3, Javier Asin3, Eileen Henderson3*. 1 Instituto de Investigaciones en Ciencias Veterinarias, Universidad Autónoma de Baja California, México. 2 Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, México. 3 California Animal Health and Food Safety Laboratory System, San Bernardino Branch, University of California-Davis. **Corresponding author:* eehenderson(a)ucdavis.edu The Diagnostic Exercises are an initiative of the Latin Comparative Pathology Group (LCPG), the Latin American subdivision of The Davis-Thompson Foundation. Members and non-members from any country of residence may contribute to these exercises. Please consider contributing a case to this initiative. It does not have to be unusual, and all pathology sub-specialties are welcome! Please consult instructions on how to format and submit your DE at https://davisthompsonfoundation.org/diagnostic-exercises-instructions/ Previous cases are available at https://davisthompsonfoundation.org/diagnostic-exercise/

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FW: Email for distribution through DTF
by Francisco Alejandro Uzal Nov. 10, 2025

Nov. 10, 2025

Dear colleagues See below a message from an anatomic pathology resident at the Royal Veterinary College, U.K. Thanks for any help you might be able to provide. Kind regards Paco Uzal Dear Davis Thompson Foundation members, As a research project as part of my residency in anatomic pathology at the Royal Veterinary College, U.K., I am interested in learning more about the challenges and mitigating strategies that apply to pathologist-basic scientist collaboration in experimental and regulatory research environments. I've created a short anonymous survey to collect this data and would be very grateful if you could spare 20 minutes to complete it. https://docs.google.com/forms/d/e/1FAIpQLSczumpOMdYesUag1bOngdXetTQLhA9947C… This study has received ethical approval from the Social Science Research Ethical Review Board at the RVC. If you have any questions or suggestions regarding the project I'd be delighted to hear them so please contact me at hmiller23(a)rvc.ac.uk<mailto:hmiller23@rvc.ac.uk>. Many thanks, Henry Miller

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November issue of Davis-Thompson Foundation November
by Francisco Alejandro Uzal Nov. 1, 2025

Nov. 1, 2025

Dear colleagues It is an honor presenting you the November issue of the Davis-Thompson Foundation Newsletter, with the compliments of our outstanding managing editors Jeann Leal and Javier Asin. And speaking of editors, this month we are thrilled to share with you the news that Dr Jeann Leal received the award “Patologista Destaque Junior" at the Brazilian Congress of Veterinary Pathology ENAPAVE 2025. We are enormously proud of him. Congratulations Jeann! And continuing with awards, the DTF former Barbara Jeann Thompson Service Award has been renamed to honor two long standing members of the Board of the Directors of the Foundation who for many years have done so much for the success of our mission: Annette Gendron-Fitzpatrick and Jim Britt. Congratulations and thank you Annette and Jim! These, together with the whole list of awardees celebrated during the award ceremony of the DTF at the ACVP meeting are presented in this newsletter. Congratulations everyone! October has been an incredibly busy month for the Foundation, with activities in many countries, including the myriad sessions during the annual meetings of the ACVP and AAVLD (the latter currently going on). Although November is upon us, there are still many more training activities coming up before the end of the year, and we are, of course, planning a full program for 2026. Please peruse these pages and check our website to learn about those. Looking forward to seeing you in one of our training activities. Warmest regards. Francisco (Paco) Uzal Chief Executive Officer Davis-Thompson Foundation Ph: 951 751 0027 E-mail: fauzal(a)ucdavis.edu<mailto:fauzal@ucdavis.edu> www.davisthompsonfoundation.org<https://www.davisthompsonfoundation.org/> [https://drive.google.com/uc?id=1oticUQZYjDPU-1vMA4wHKvLb2SScHV-J]

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(no subject)
by Claudio Barros Nov. 1, 2025

Nov. 1, 2025

davis_members(a)list.cldavis.org, discussion(a)aavld.org, rozuna(a)aavld.org DTF-LCPG #*271* – Answer Sheet Dear All, Attached is the *Answer Sheet *for Diagnostic Exercise #*2**71, *contributed by Juan Diego Hidalgo Dittel1, DVM; Roger Such Basiana2, DVM, Laura G. Bass 3,4,6, DVM, MSc; Gaby Dolz-Wiedner5, DVM, PhD; Antony Solórzano-Morales5, Biol, MSc; Roberto W. I. Olivares1,6, DVM, EdS, PhD, DACVP 1-Servicio de Patología Diagnóstica LAPAVET-ESFA, Cátedra de Patología e Histología, Escuela de Medicina y Cirugía Veterinaria San Francisco de Asís, Universidad Veritas, Vázquez de Coronado, San José, Costa Rica. 2-Jaguar Rescue Center, Puerto Viejo, Limón, Costa Rica. 3- Maestría en Enfermedades Tropicales, Posgrado Regional en Ciencias Veterinarias Tropicales (PCVET), Universidad Nacional (UNA), Heredia, Costa Rica. 4- Cátedra de Microbiología e Inmunología, Escuela de Medicina y Cirugía Veterinaria San Francisco de Asís, Universidad Veritas. Vázquez de Coronado, San José, Costa Rica. 5-Laboratorio de Zoonosis y Entomología, Escuela de Medicina Veterinaria, Universidad Nacional (UNA), Heredia, Costa Rica. 6- Current position: California Animal Health & Food Safety Laboratory System – UC Davis. *Corresponding author*: E-mail: rwolivares(a)ucdavis.edu The Diagnostic Exercises are an initiative of the Latin Comparative Pathology Group (LCPG), the Latin American subdivision of The Davis-Thompson Foundation. Members and non-members from any country of residence may contribute to these exercises. Please consider contributing a case to this initiative. It does not have to be unusual, and all pathology sub-specialties are welcome! Please consult instructions on how to format and submit your DE at https://davisthompsonfoundation.org/diagnostic-exercises-instructions/ Previous cases are available at https://davisthompsonfoundation.org/diagnostic-exercise/

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DTF-LCPG #272 – Question Sheet
by Claudio Barros Nov. 1, 2025

Nov. 1, 2025

Dear All, Attached is the *Question Sheet *for Diagnostic Exercise #*2**72, * contributed by Tatiana Paz1, Eileen Henderson2, Javier Asín2 and Francisco A. Uzal2. 1Veterinary Microbiology and Molecular Biology Laboratory, Veterinary Medicine Faculty, Federal University of Mato Grosso, MT, Brazil. 2California Animal Health and Food Safety Laboratory System, San Bernardino Branch, School of Veterinary Medicine, University of California-Davis, San Bernardino, CA, USA. Corresponding author: tpazc(a)unal.edu.co The Diagnostic Exercises are an initiative of the Latin Comparative Pathology Group (LCPG), the Latin American subdivision of The Davis-Thompson Foundation. Members and non-members from any country of residence may contribute to these exercises. Please consider contributing a case to this initiative. It does not have to be unusual, and all pathology sub-specialties are welcome! Please consult instructions on how to format and submit your DE at https://davisthompsonfoundation.org/diagnostic-exercises-instructions/ Previous cases are available at https://davisthompsonfoundation.org/diagnostic-exercise/

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Deck the Cover: Share Your Festive Pathology Images!
by Images ＠ Davis-Thompson Foundation Oct. 27, 2025

Oct. 27, 2025

The Davis-Thomson Foundation invites you to submit digital gross, microscopic, or ultrastructural images depicting a lesion, to be featured on the front page of the monthly newsletter. Each month a new image will take pride of place in the issue. Worried about image copyrights? Have no fear, the foundation does not claim copyright for any material published by us. Submission information: · Submission deadline: submit anytime; all submissions roll over to be considered for future covers if we have already selected an image for the upcoming newsletter. · *Send your image by e-mail to: * o Dr. Kate Watson and Dr. Donald McGavin: images(a)davisthompsonfoundation.org Figure Requirements (see examples below): · Do not exceed the maximum file size of 5 MB. · Acceptable formats are TIFF and JPEG. o *Minimum acceptable resolution is 300 pixels/inch* (120 pixels/cm) for half-tones (i.e., photographs, histology images). § When you are saving a file such as a TIFF from any package such as Photoshop, you are given the option of compressing the file. LZW compression will speed up the upload and download times and will not affect your image in a negative way. Figure Legend provided within the email or as a word document attachment separate from the image file: · Name/names of contributors and their affiliated institutions. · Brief (no longer than 2 sentence) description of the lesion including: o Signalment o Diagnosis o Any other pertinent information you want to share Cheers, Drs. Kate Watson and Donald McGavin

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DTF-LCPG #271 – Question Sheet
by Claudio Barros Oct. 15, 2025

Oct. 15, 2025

Dear All, Attached is the Question* Sheet *for Diagnostic Exercise #*2**71, * contributed by Juan Diego Hidalgo Dittel1, DVM; Roger Such Basiana2, DVM, Laura G. Bass3,4,6, DVM, MSc; Gaby Dolz-Wiedner5, DVM, PhD; Antony Solórzano-Morales5, Biol, MSc; Roberto W. I. Olivares1,6, DVM, EdS, PhD, DACVP 1-Servicio de Patología Diagnóstica LAPAVET-ESFA, Cátedra de Patología e Histología, Escuela de Medicina y Cirugía Veterinaria San Francisco de Asís, Universidad Veritas, Vázquez de Coronado, San José, Costa Rica. 2-Jaguar Rescue Center, Puerto Viejo, Limón, Costa Rica. 3- Maestría en Enfermedades Tropicales, Posgrado Regional en Ciencias Veterinarias Tropicales (PCVET), Universidad Nacional (UNA), Heredia, Costa Rica. 4- Cátedra de Microbiología e Inmunología, Escuela de Medicina y Cirugía Veterinaria San Francisco de Asís, Universidad Veritas. Vázquez de Coronado, San José, Costa Rica. 5-Laboratorio de Zoonosis y Entomología, Escuela de Medicina Veterinaria, Universidad Nacional (UNA), Heredia, Costa Rica. 6- Current position: California Animal Health & Food Safety Laboratory System – UC Davis. *Corresponding author*: E-mail: rwolivares(a)ucdavis.edu The Diagnostic Exercises are an initiative of the Latin Comparative Pathology Group (LCPG), the Latin American subdivision of The Davis-Thompson Foundation. Members and non-members from any country of residence may contribute to these exercises. Please consider contributing a case to this initiative. It does not have to be unusual, and all pathology sub-specialties are welcome! Please consult instructions on how to format and submit your DE at https://davisthompsonfoundation.org/diagnostic-exercises-instructions/ Previous cases are available at https://davisthompsonfoundation.org/diagnostic-exercise/

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DTF-LCPG #270 – Answer Sheet
by Claudio Barros Oct. 15, 2025

Oct. 15, 2025

Dear All, Attached is the *Answer Sheet *for Diagnostic Exercise #*2**70, *contributed by M Kevin Keel1, Elizabeth C. Rose2,3, Celeste M Morris2,4. 1Department of Pathology, Microbiology and Immunology (Keel); School of Veterinary Medicine; University of California, Davis; Davis, CA 95616 2William R. Pritchard Veterinary Medical Teaching Hospital; School of Veterinary Medicine; University of California, Davis; Davis, CA. 95616 3Current address: Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27607 4Current address: Department of Veterinary Medicine and Surgery; College of Veterinary Medicine; University of Missouri; Columbia, MO 65211 *Corresponding author:* mkkeel(a)ucdavis.edu The Diagnostic Exercises are an initiative of the Latin Comparative Pathology Group (LCPG), the Latin American subdivision of The Davis-Thompson Foundation. Members and non-members from any country of residence may contribute to these exercises. Please consider contributing a case to this initiative. It does not have to be unusual, and all pathology sub-specialties are welcome! Please consult instructions on how to format and submit your DE at https://davisthompsonfoundation.org/diagnostic-exercises-instructions/ Previous cases are available at https://davisthompsonfoundation.org/diagnostic-exercise/

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Survey about use of Bloat line to diagnose bloat
by Francisco Alejandro Uzal Oct. 7, 2025

Oct. 7, 2025

Dear colleagues A group of pathologists (including myself) is working trying to understand the usefulness of the bloat (esophageal) line for the diagnosis of bloat. For this, we have prepared a very brief survey that we would appreciate if you can please help us with. If you could please complete this survey, we would be most thankful. Below is the link for the survey: https://www.surveymonkey.com/r/DR3SCSF Kind regards Francisco Uzal, DVM, MSc, PhD, Dipl. ACVP Chief Executive Officer Davis-Thompson Foundation Ph: 951 751 0027 E-mail: fauzal(a)ucdavis.edu<mailto:fauzal@ucdavis.edu> www.davisthompsonfoundation.org<https://www.davisthompsonfoundation.org/> [https://drive.google.com/uc?id=1oticUQZYjDPU-1vMA4wHKvLb2SScHV-J]

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