Peer-reviewed veterinary case report
Arteriovenous haemangioma in two dogs and a cat.
- Journal:
- Journal of comparative pathology
- Year:
- 2008
- Authors:
- Schöniger, S et al.
- Affiliation:
- Department of Pathology and Infectious Diseases · United Kingdom
Plain-English summary
In this study, researchers looked at a rare type of benign tumor called an arteriovenous hemangioma, which affects blood vessels. They found this tumor in two dogs and one cat. One dog and the cat had a growth on their skin, while the other dog had a bleeding mass on its tongue. After surgery to remove these masses, they found that the tumors were made up of various blood vessel structures. This research helps veterinarians better understand and identify different types of vascular tumors in pets.
Abstract
Haemangiomas are benign vascular tumours and several types can be distinguished based on microscopical features. Capillary and cavernous haemangiomas are most commonly reported in man and domestic animals. Arteriovenous haemangiomas are rare variants in man and herein we describe this subtype in two dogs and one cat. One dog and the cat presented with a cutaneous vascular lesion, the other dog with a bleeding mass in the tongue. Surgically excised masses comprised non-encapsulated proliferations of variably sized arterial- and venous-like vessels, accompanied by clusters of capillaries and immature vascular structures in the feline cutaneous tumour and the canine lingual neoplasm. All vasoformative elements had von Willebrand factor-positive endothelia enclosed by a smooth muscle actin-positive tunica media or by pericytes. The results of this study expand the range of differential diagnoses for vascular neoplasms in the dog and cat.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/18620702/