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Related Experiment Videos

Protothecal colitis in a German shepherd dog.

T S Rallis1, D Tontis, K K Adamama-Moraitou

  • 1Department of Clinical Studies, School of Veterinary Medicine, Aristotle University of Thessaloniki, Greece.

Australian Veterinary Journal
|September 12, 2002
PubMed
Summary

Prototheca species infection caused severe rectal inflammation and stricture in a German Shepherd Dog. Despite treatment and surgery, the condition progressed, leading to euthanasia.

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Area of Science:

  • Veterinary Medicine
  • Infectious Diseases
  • Canine Pathology

Background:

  • Prototheca species are algae-like organisms that can cause infections in various animal species.
  • Algal infections in dogs are uncommon but can lead to significant gastrointestinal issues.

Observation:

  • A 3 1/2-year-old German Shepherd Dog presented with chronic hemorrhagic diarrhea and tenesmus.
  • Clinical examination revealed rectal mucosal thickening, while colonoscopy showed severe granularity, nodules, and a rectal stricture.

Findings:

  • Histopathological analysis of biopsy samples identified Prototheca spp. organisms.
  • The dog had a rectal stricture located 7 to 9 cm from the anus.

Implications:

  • This case highlights Prototheca spp. as a potential cause of severe rectal disease and stricture formation in dogs.

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  • The limited treatment options and poor prognosis underscore the challenges in managing canine protothecosis.