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Arteriovenous Malformation of the Tongue Resulting in Recurrent Severe Hemorrhage in a Young Dog

Seneviratne, M; Longue, C; Harrington, N; Bristow, P


M Seneviratne

C Longue

N Harrington

P Bristow


An 8 mo old male entire beagle was presented to the emergency and critical care service following several severe bleeding episodes from the oral cavity. Oral examination revealed a purple, spongy, pulsatile lesion on the rostral two-thirds of the tongue. Computed tomography angiography revealed a severely distended right linguofacial vein with numerous, tortuous branching vessels within the tongue, consistent with an arteriovenous (AV) malformation. A cervical surgical approach was performed, and the right lingual artery was isolated and catheterized. A direct arteriogram confirmed this was the main feeder artery to the lesion, and it was ligated. Although the bleeding episodes initially resolved, a moderate bleeding episode occurred 6 days postoperatively, and a partial glossectomy was performed. Histopathology was consistent with an AV malformation. The dog had a good recovery from surgery and remains free of clinical signs 13 mo later. Following extensive review of the veterinary literature, this is the only reported case of a lingual AV malformation in the dog. Partial glossectomy resulted in resolution of the clinical signs and was well tolerated. Although rare, AV malformations should be considered as a differential diagnosis for spontaneous oropharyngeal bleeding.


Seneviratne, M., Longue, C., Harrington, N., & Bristow, P. (2020). Arteriovenous Malformation of the Tongue Resulting in Recurrent Severe Hemorrhage in a Young Dog

Journal Article Type Article
Acceptance Date Sep 17, 2020
Publication Date Sep 18, 2020
Deposit Date Oct 29, 2020
Publicly Available Date Sep 19, 2021
Journal Journal of the American Animal Hospital Association
Print ISSN 1547-3317
Peer Reviewed Peer Reviewed
Keywords Small Animals
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