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Connective tissue-type mast cell leukemia in a dog.
Y Hikasa1, T Morita, Y Futaoka
1Department of Veterinary Internal Medicine, Faculty of Agriculture, Tottori University, Japan.
The Journal of Veterinary Medical Science
|March 17, 2000
Summary
A rare canine mast cell leukemia case in a Curly-Coated retriever showed widespread organ infiltration and severe clinical signs. This highlights the aggressive nature of this uncommon hematologic malignancy in dogs.
Area of Science:
- Veterinary Pathology
- Canine Hematology
- Oncology
Background:
- Connective tissue-type mast cell leukemia is a rare and aggressive hematologic malignancy.
- Mast cell infiltration into visceral organs can lead to severe clinical manifestations.
Observation:
- A seven-year-old female Curly-Coated retriever presented with acute circulatory collapse, vomiting, diarrhea, abdominal distension, jaundice, cyanosis, dyspnea, and pulmonary edema.
- Physical examination revealed hepatomegaly, ascites, and right ventricular enlargement.
- Hematologic findings included mast cell leukemia, neutrophilia, monocytosis, and thrombocytopenia.
Findings:
- Biochemical analysis indicated hemolytic hyperbilirubinemia, hyperhistaminemia, and evidence of renal and hepatic injury.
- Systemic mast cell distribution was observed, with predominant infiltration in the diaphragm and liver.
- A significant mast cell mass was identified in the serosa of the ileum, cecum, and colon.
Implications:
- This case underscores the diagnostic challenges and severe prognosis associated with canine mast cell leukemia.
- Understanding mast cell distribution and associated biochemical changes is crucial for diagnosis and management.
- Further research into the pathogenesis and treatment of this rare condition is warranted.