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Intrapericardial neoplasia in dogs
1Department of Pathology and Microbiology, Faculty of Veterinary Medicine, University of Montreal, St-Hyacinthe, Canada.
Summary
This study analyzed canine heart and pericardial tumors from necropsies. Hemangiosarcomas were the most common primary heart tumors, while lymphomas were the most frequent metastatic tumors found in dogs.
Area of Science:
- Veterinary Pathology
- Canine Oncology
- Cardiovascular Diseases
Background:
- Neoplasia affecting the canine pericardium and heart is uncommon.
- Understanding the types and origins of these tumors is crucial for diagnosis and treatment.
Purpose of the Study:
- To investigate the prevalence and types of primary and metastatic neoplasms within the canine pericardium, heart base, and myocardium.
- To identify the most common histologic types of these cardiac tumors.
Main Methods:
- Retrospective analysis of 1,919 canine necropsies.
- Selection of 52 cases with primary or metastatic neoplasia involving the pericardium, heart base, or myocardium.
- Histopathological classification of selected neoplasms.
Main Results:
- Primary intrapericardial neoplasms were more common than intrapericardial metastases.
- The most frequent primary neoplasms were hemangiosarcomas, followed by chemodectomas.
- Lymphomas were the most frequent metastatic neoplasms, followed by fibrosarcomas and rhabdomyosarcomas.
Conclusions:
- Canine cardiac and pericardial tumors exhibit distinct patterns of primary versus metastatic origins.
- Hemangiosarcomas and lymphomas represent significant neoplastic burdens in these locations.
- Further research into the etiology and management of canine cardiac neoplasms is warranted.