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United States Department of Agriculture

Agricultural Research Service

Research Project: Integrated Approach to the Detection and Control of Foodborne Parasites and the Impact on Food Safety

Location: Animal Parasitic Diseases

Title: What is your diagnosis? Duodenal brush preparation from a dog

item Palic, Jelena
item Parker, Valerie
item Fales-Williams, Amanda
item Jarvinen, Julie
item Dubey, Jitender

Submitted to: Veterinary Clinical Pathology
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: July 1, 2011
Publication Date: December 1, 2012
Citation: Palic, J., Parker, V.J., Fales-Williams, A.J., Jarvinen, J.A., Dubey, J.P. 2012. What is your diagnosis? Duodenal brush preparation from a dog. Veterinary Clinical Pathology. 41:431-432.

Interpretive Summary: Hammondia heydorni, a single celled parasite is very closely related to Neospora caninum and Toxoplasma gondii. Its diagnosis in a living animal is difficult. In the present paper authors report clinical illness in a dog and discuss differential diagnosis of these three closely related parasites. The results will be of interest to biologists, parasitologists, and veterinarians.

Technical Abstract: A 10-year-old spayed female Italian Greyhound was presented to the Iowa State University College of Veterinary Medicine for evaluation of a two-month history of weight loss and anorexia with a two-week history of vomiting. The dog had recently received corticosteroid medication for suspected intervertebral disc disease. On physical examination, the dog was thin with a body condition score of 2.5/9 and had severe diffuse cachexia. Rectal examination revealed reddish-brown soft stool. Physical examination was otherwise unremarkable and no neurologic deficits were noted. Hematology revealed a mild anemia, mild neutrophilia and moderate thrombocytosis. Serum biochemistry revealed mild hypoalbuminemia and hypocalcemia. Urinalysis, thoracic radiographs and abdominal ultrasound revealed no abnormalities. Hammondia parasites were found in intestinal biopsy.

Last Modified: 10/31/2014
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