Charles Louis Davis and Samuel Wesley Thompson DVM Foundation

For the Advancement of Veterinary and Comparative Pathology

info@cldavis.org | Phone: 847-367-4359 | Fax: 847-247-1869
  • 2018 Northeast Veterinary Pathology Conference

    Dr. John Cullen will be speaking on Parenchymal Diseases of the Liver.

  • 2018 Annual Gross Pathology Review Course

    Learn all about gross lesions in domestic, laboratory, and exotic animals.

  • 2018 Descriptive Pathology Course

    Brush ​​up ​​your ​​descriptive ​​​​skills ​​in ​​a ​​supportive environment.

  • Prof. Maja Suter Awarded Coveted Olafson Medal

    This medal has only been awarded 13 times since 1980 to eminent veterinary pathologists. It is highly fitting that Maja Suter is the first female recipient of the Olafson Medal.

  • Student Scholarship Awards

    The Foundation proudly awarded deserving residents and graduate students at the 2017 ACVP Annual Meeting.

  • 2017 Southcentral Division Meeting

    The meeting was held at Texas A&M Galveston Campus in October, 2017. Annual dinner at Landry's!

  • 5th International Seminar on Veterinary Pathology and Ichthyopathology

    It was held at the Universidad National de Colombia in Bogota, Colombia in August, 2017.

  • IV Chilean Meeting on Veterinary Histopathology

    It was organized by Dr. Carlos Gonzalez from Andres Bello University, and sponsored by the Latin Comparative Pathology Group (the Latin-American Division of the Foundation).

CE Portal

Course ID: 165940
Title: The Systemic Diseases Of The Domestic Ferret (Mustela Putorius Furo.)


Length: 02:00:00
Author: Bruce Williams DVM, DACVP
Description: This three-hour lecture covers the systemic diseases of the domestic ferret (Mustela putorius furo.)

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!

Random Image:

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 vinicius.carreira@gmail.com 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 today in Noah's from Dr. Fabrizio Grandi and Nara Zucato.

Tissue from an 8-year-old female Maltese.

Morphologic Diagnosis: Mild multifocal pustular dermatitis

Name the Condition: Pemphigus foliaceous (PF)

Comment: Canine PF is a relatively common autoimmune skin disease characterized by transient superficial pustules that develop in waves. Clinical differential diagnosis includes impetigo, superficial bacterial folliculitis, pustular dermatophytosis, drug-related PF, sterile pustular erytrodermia. Broad, discrete, subcorneal or intragranular pustules within a variably acanthotic epidermis are the typical histopathologic lesions of PF. Pustules are composed of neutrophils and often eosinophils. Individualized, rounded, often brightly eosinophilic, acantholytic keratinocytes are present in small to large numbers within pustules.

Reference: Gross et al. Skin diseases of the dog and cat. Clinical and histopathological diagnosis. 2005.
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New today in Noah - from Dr. Donal O'Toole of the Wyoming Veterinary Diagnostic Laboratory.

Tissue from a feedlot steer with bilaterally swollen hocks

Morphologic Diagnosis: Focally extensive suppurative tibiotarsal synovitis

Cause: Mycoplasma bovis

Comment: The bilateral location involving hocks is typical. This animal also had characteristic Mycoplasma bovis pyogranulomatous nodules throughout lungs.

Adegboye DS et al: 1996, Mycoplasma bovis-associated pneumonia and arthritis complicated with pyogranulomatous tenosynovitis in calves. J Am Vet Med Assoc. 209(3):647-649
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New today in Noah from Drs. Fabrizio Grandi and J├ęssica Valente.

Tissue from an 11-year-old mixed breed dog.

Name the condition: Testicular torsion

Comment: This patient had a cryptorchid testis with a diffuse seminoma. Torsion of the testis in dogs can be seen mainly in cryptorchid testis that develops some kind of neoplasia (seminomas, Leydig cell tumors, Sertoli cell tumors). Torsion leads to complete or incomplete ischemia and infarction. Sometimes, necrosis can impair the classification of the neoplasm since neoplastic cells undergo coagulative necrosis and therefore lose their morphological features.
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New today in Noah's Arkive from Loni Schumacher of Iowa State University.

Tissue from a puppy.

Morphologic Diagnosis: Bilateral mucopurulent rhinitis

Cause Canine morbillivirus

Comment: Associated Lesions: Interstitial pneumonia, encephalomyelitis Sequelae: enamel hypoplasia, foot pad hyperkeratosis (hard pad) Canine morbillivirus causes disease in a variety of animals including those in the Canidae, Felidae, Mustelidae families and in marine mammals. Its immunosuppressive effects in the lung can cause co-infection with canine adenovirus, secondary bacterial or protozoa infections.
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