Right-sided congestive heart failure in a dog because of a primary intracavitary myocardial lymphoma

Tong, L. J., Bennett, S. L., Thompson, D. J., Adsett, S. L. and Shiel, R. E. (2015) Right-sided congestive heart failure in a dog because of a primary intracavitary myocardial lymphoma. Australian Veterinary Journal, 93 3: 67-71. doi:10.1111/avj.12289


Author Tong, L. J.
Bennett, S. L.
Thompson, D. J.
Adsett, S. L.
Shiel, R. E.
Title Right-sided congestive heart failure in a dog because of a primary intracavitary myocardial lymphoma
Journal name Australian Veterinary Journal   Check publisher's open access policy
ISSN 1751-0813
0005-0423
Publication date 2015-03
Year available 2015
Sub-type Article (original research)
DOI 10.1111/avj.12289
Open Access Status
Volume 93
Issue 3
Start page 67
End page 71
Total pages 5
Place of publication Chichester, United Kingdom
Publisher Wiley-Blackwell Publishing Ltd
Collection year 2016
Language eng
Formatted abstract
Case report

A 9-year-old female intact Cocker Spaniel was presented with a history of acute-onset dyspnoea and abdominal distension of 3 days' duration. Ultrasonography revealed pleural, peritoneal and pericardial effusions. Abdominal fluid analysis was consistent with a modified transudate. Echocardiography revealed a large, hypoechoic space-occupying mass within the right atrium. The dog was euthanased and the postmortem examination showed a solid, 40 × 35 × 20 mm broad-based mass arising from the right atrial wall and occluding approximately 90% of the right atrial lumen. Histopathology revealed myocardial lymphoma. There were histologically similar, focal nodules in the lung parenchyma without involvement of other extracardiac sites. There was gross and histological evidence of hepatic congestion and marked distension of the caudal vena cava, consistent with secondary right-sided congestive heart failure.

Conclusion

This case highlights the need to consider lymphoma as a differential diagnosis for an intra-atrial mass and as a cause of congestive heart failure in the dog.
Keyword Congestive heart failure
Dogs
Intra-atrial mass
Lymphoma
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2016 Collection
School of Veterinary Science Publications
 
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