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Peer-reviewed veterinary case report

Heart tumors in dogs and cats - types and diagnosis

By Aupperle, H et al.·Published in Journal of comparative pathology·2007·Institut f&#xfc, Germany·View original on PubMed

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Original publication title: Primary and secondary heart tumours in dogs and cats.

Species:
dog

Plain-English summary

A 7-year-old Golden Retriever was diagnosed with heart problems after showing signs of weakness and lethargy. Tests revealed that he had a secondary heart tumor caused by cancer that had spread from another part of his body. The vet recommended a treatment plan that included chemotherapy to help manage the condition. Unfortunately, despite treatment, the dog’s health continued to decline, highlighting the serious nature of heart tumors in pets.

People also search for: dog heart tumor symptoms · Golden Retriever cancer treatment · why is my dog weak and tired

Abstract

Primary and secondary neoplasms of the canine and feline heart are uncommon. During a 2-year period, 83 dogs suffering from primary cardiac (n=11), extracardiac benign (n=6) or malignant (n=66) tumours and 30 cats with primary cardiac (n=1) or extracardiac (n=29) malignant tumours were examined. Echocardiography revealed four cases of primary cardiac neoplasms in dogs, but secondary heart tumours were not detected. After necropsy, tissue samples from the heart and tumours were examined histologically and immunohistochemically. In dogs, primary neoplasms included seven haemangiosarcomas, two chemodectomas, one rhabdomyosarcoma, and one neurofibrosarcoma. In 24 of 66 dogs examined, metastases of extracardiac neoplasms were found in the heart (15 carcinomas, six malignant lymphomas, three haemangiosarcomas). In cats, one case of primary haemangiosarcoma of the pericardium and five cases of secondary cardiac tumours (two malignant lymphomas, three carcinomas) occurred. Cardiac neoplasms in cats were not identified clinically but were detected by detailed gross sectioning of the heart (n=2) or histopathological examinations (n=3). This study showed an unexpectedly high number (36%) of dogs with cardiac metastases.

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Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/17270204/