Peer-reviewed veterinary case report
Collateral veins forming in Yorkshire terrier with cranial vena cava
By Ricciardi, Mario & Lanci, Marcello·Published in The Journal of veterinary medical science·2017·Pingry Veterinary Hospital, Italy·View original on PubMed →
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Original publication title: Acquired collateral venous pathways in a dog with cranial vena cava obstruction.
- Species:
- dog
Plain-English summary
An 8-year-old female Yorkshire terrier was brought in with swelling in her neck and face due to a blockage in the cranial vena cava, likely caused by a tumor in her chest. As a result of this blockage, her body developed new blood vessels to help reroute blood flow. This unusual condition, known as collateral venous pathways, had not been previously documented in dogs. Understanding these new blood vessels can help veterinarians diagnose similar issues in the future. Unfortunately, the underlying tumor was a serious concern, and the outcome for this dog was not specified.
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Abstract
An 8-year-old neutered female Yorkshire terrier with mediastinal neoplasm and subsequent cranial vena cava invasion developed multiple venous collaterals from the brachiocephalic venous trunks to the caudal vena cava. Collateral venous pathways have been described in dogs with obstruction or increased blood flow resistance of the caudal vena cava but cranial vena cava collaterals have not been reported until now in veterinary patients. In this report, the CTA characteristics of such peculiar vascular routes are described and compared to similar findings reported in human medical literature. The recognition of such ancillary CT finding could help radiologists to reach a more accurate diagnosis of superior vena cava syndrome.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/28924100/