Charles Louis Davis and Samuel Wesley Thompson DVM Foundation

For the Advancement of Veterinary and Comparative Pathology | Phone: 847-367-4359 | Fax: 847-247-1869
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Upcoming meetings

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Most Requested Publications

We are currently having problems with our bookstore, and we are sorry for the inconvenience. Please call the Main Office at 847-367-4359 to place all orders, and they will be shipped immediately. This problem should be resolved within the month.

CE Portal

Course ID: 166799
Title: Pathology of the Horse

Length: 06:00:00
Author: Bruce H. Williams, DVM, Diplomate, American College of Veterinary Pathology
Description: This 6-hour lecture on the gross pathology of the horsets covers many of the common (and not-so-common) diseases of this species.

Noah's Arkive

The Foundation is proud to make Noah's Arkive, a searchable collection of veterinary pathology images, available online at no cost. Special thanks to the University of Georgia for transferring the database and image collection to the Foundation!

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CL Davis Diagnostic Exercises

The main goal of these Diagnostic Exercises is to provide interesting cases, focusing on the gross pathological lesions and associated histopathologic or cytologic findings. This material can be of great use for veterinary students, in-training pathologists, and ACVP diplomates alike.

There will be one contribution per month of the year; anyone may contribute. To do so, please contact Dr. Vinicius Carreira at to identify a convenient date for your submission and to receive templates to be used. Spots will be filled out on a first-come first-served basis.

Exercise Thumbnail Answer
Click here for case history Click here for case synopsis

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New in Noah's Arkive: 39 new images and comments from Laura Bryan of Texas A&M. Gorgeous stuff...welcome to the Noah team, Laura!

If you want to see them...just search under keywords "Laura Bryan".
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Just added today in Noah's Arkive from the collection of James Carpenter - thiamine deficiency in a cat.

These are characteristic lesions associated with thiamine deficiency in carnivores. Characteristically this pathway is affected with necrosis in the caudal colliculus (center), and various periventricular nuclei including the lateral geniculate (left) and red (right). Rarely, in severe cases in carnivores there may be laminar necrosis in the middle strata of the superficial cortex of the occipital lobe. (Laminar necrosis is the characteristic finding in ruminants).

Historically, thiamine deficiency was associated with feeding rancid fish, especially to cats and mink, but cases are more commonly seen today as a result of malnutrition or feeds that have been heated or treated with sulfates to make them look fresh.

Thiamine decarboxylase is a component of transketolase in the Krebs cycle – in deficiency, decreased levels of transketolase with increased amounts of circulating pyruvate may result in the vascular changes noted in this condition.

The histologic change is endothelial necrosis, edema, and coagulative necrosis within the affected areas.
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You will NOT want to miss this all-day pre-meeting workshop at the upcoming ACVP meeting in Vancouver - Saturday Nov. 4th. Get there early for the best, most informative and most all-around fun eight hours of the week!

Sign-up for this pre-meeting workshop as part of your ACVP registration.
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I love going through old kodachromes. From the collection of Bob McCully. This one goes way back, probably to his early days at Onderstepoort. It's black and white, so I won't add it to Noah's, but I couldn't just let it go. Pathogenesis? ... See moreSee less

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