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Right auricle aneurysm in dogs can be detected with multidetector‐row CT and presents with varying morphology

Authors :
Arianna Costa
Alessia Cordella
Marco Caldin
Giovanna Bertolini
Source :
Veterinary Radiology & Ultrasound. 64:28-35
Publication Year :
2022
Publisher :
Wiley, 2022.

Abstract

Right auricle aneurysm (RAA) has been reported to be a rare congenital or acquired condition in dogs, however published CT characteristics are limited to a small number of cases. The aim of this 13-year, single-center, retrospective, cross-sectional study was to describe the prevalence and appearance of RAA in a larger group of dogs. Reports of 10,886 dogs that underwent thoracic CT examination for various reasons were reviewed. Computed tomographic data of dogs with presumed RAA (based on published imaging characteristics) were retrieved from the archive. Oblique multiplanar reformatted images were used to record RAA site, shape, and dimensions (neck, maximum height and width). Patients' sex, age, and body weight were evaluated for any association with the presence of RAA. Presumed RAA was detected in 23/10,886 dogs having thoracic CT in the selected period of time (prevalence 0.21%). Three RAA phenotypes were described: diffuse saccular dilation in 19 of 23 dogs, focal saccular dilation in three of 23 dogs, and fusiform in one of 23 dogs. The bodyweights of dogs with presumed RAA were significantly lower than those of the remaining 10836 dogs without RAA (median 8 kg [IQR 5; range 37.6] and median 16 kg [IQR 23; range 116.9] respectively; P 0.003. Female sex was also significantly associated with RAA (P = 0.03). Findings indicated that RAA has a low prevalence in dogs, can be detected with CT, can be present in asymptomatic dogs, and can have varying appearances. In this sample of dogs, female sex and low body weight were significantly associated with RAA.

Subjects

Subjects :
General Veterinary

Details

ISSN :
17408261 and 10588183
Volume :
64
Database :
OpenAIRE
Journal :
Veterinary Radiology & Ultrasound
Accession number :
edsair.doi.dedup.....bb9292e28045029dc5e1341f9613bc3a
Full Text :
https://doi.org/10.1111/vru.13130