{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,1]],"date-time":"2026-02-01T22:00:47Z","timestamp":1769983247637,"version":"3.49.0"},"reference-count":34,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2025,11,21]],"date-time":"2025-11-21T00:00:00Z","timestamp":1763683200000},"content-version":"vor","delay-in-days":20,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2025,11,1]],"date-time":"2025-11-01T00:00:00Z","timestamp":1761955200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Vet Radiology Ultrasound"],"published-print":{"date-parts":[[2025,11]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>Aortic body paragangliomas (ABPs) are the most common heart base tumor in dogs; however, descriptions of their computed tomography (CT) and magnetic resonance imaging (MRI) findings are lacking. Although generally considered benign, ABPs can present as malignant neoplasms with local invasion and metastasis. The objectives of this study were to describe the CT and MRI features of confirmed benign and malignant ABPs and identify significant features associated with malignancy. Forty\u2010four dogs with 43 CTs and 3 MRIs were included. Most (68%) dogs were males, and 48% were brachycephalic breeds. At CT, ABPs were mostly heterogeneously contrast\u2010enhancing, well\u2010marginated, lobular or ovoid, and frequently fluid\u2010cavitated. At MRI, ABPs had heterogeneous T2 hyperintensity, uniform contrast enhancement, a variable \u201csalt\u2010and\u2010pepper\u201d sign, and fluid\u2010cavitated regions. Local invasion was noted in 11 cases. Thirteen dogs had confirmed metastatic lesions, with the most common sites being local lymph nodes, heart, and bones. ABPs frequently displaced and compressed regional structures and less often encircled vasculature. Pericardial and peritoneal effusions were significantly associated with confirmed metastasis. Encircling of vessels, mediastinal effusion, and right\u2010sided congestive heart failure were significantly associated with invasion. ABPs may be present in non\u2010brachycephalic breeds, and malignant masses have the potential for regional invasion and distant bone metastasis.<\/jats:p>","DOI":"10.1111\/vru.70106","type":"journal-article","created":{"date-parts":[[2025,11,21]],"date-time":"2025-11-21T09:40:26Z","timestamp":1763718026000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["CT and MRI Features of Aortic Body Paragangliomas in 44 Dogs"],"prefix":"10.1111","volume":"66","author":[{"given":"Ria","family":"Watko","sequence":"first","affiliation":[{"name":"Department of Small Animal Clinical Sciences University of Florida  Gainesville Florida USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Elodie","family":"Huguet","sequence":"additional","affiliation":[{"name":"Department of Small Animal Clinical Sciences University of Florida  Gainesville Florida USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jorge A.","family":"Hernandez","sequence":"additional","affiliation":[{"name":"Department of Small Animal Clinical Sciences University of Florida  Gainesville Florida USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lauren A.","family":"Russell","sequence":"additional","affiliation":[{"name":"Department of Large Animal Clinical Sciences School of Veterinary Medicine and Biomedical Sciences Texas A&amp;M University  College Station Texas USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Susanne","family":"Stieger\u2010Vanegas","sequence":"additional","affiliation":[{"name":"Department of Clinical Sciences College of Veterinary Medicine Oregon State University  Corvallis Oregon USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wilfried","family":"Mai","sequence":"additional","affiliation":[{"name":"Department of Clinical Sciences and Advanced Medicine School of Veterinary Medicine University of Pennsylvania  Philadelphia Pennsylvania USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Erika R.","family":"Cromwell","sequence":"additional","affiliation":[{"name":"Department of Surgical Sciences School of Veterinary Medicine University of Wisconsin\u2013Madison  Madison Wisconsin USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Samantha","family":"Loeber","sequence":"additional","affiliation":[{"name":"Department of Surgical Sciences School of Veterinary Medicine University of Wisconsin\u2013Madison  Madison Wisconsin USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Federico R. 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