title: Computed tomography findings in portal vein aneurysm of dogs.
abstract: In this retrospective study, the appearances of extrahepatic and intrahepatic portal vein aneurysms (PVAs) in dogs were evaluated using multidetector computed tomography (CT). Data from 3060 dogs that underwent abdominal CT were reviewed for focal portal vein dilatation. PVAs were detected in 15/3060 (0.49%) dogs. The bodyweights of dogs with PVAs were significantly higher than the bodyweights of dogs without aneurysms (P=0.0001). Male sex was also significantly associated with PVAs (OR=6.23). Boxers were predisposed to the development of PVA (OR=11.88). Extrahepatic PVAs were always located in the portal vein at the level of the gastroduodenal vein insertion and were saccular in 10/15 dogs and fusiform in 5/15 dogs. One dog had an additional intrahepatic aneurysm of the umbilical part of the left intrahepatic portal branch. No dogs had clinical signs related to the PVA(s), although one dog developed a portal vein thrombosis in the site of the aneurysm.
authors.affiliation: San Marco Veterinary Clinic, Via Sorio 114/c, 35141 Padua, Italy. bertolini@sanmarcovet.it
authors.forename: G
authors.initials: G
authors.lastname: Bertolini
authors.forename: M
authors.initials: M
authors.lastname: Caldin
mesh_terms: D000783:Aneurysm / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000662:veterinary*; D000818:Animals; D004108:Dilatation, Pathologic / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000662:veterinary; D004283:Dog Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000453:epidemiology; D004285:Dogs; D005260:Female; D007558:Italy / Q000453:epidemiology; D008099:Liver / Q000000981:diagnostic imaging*; D008297:Male; D061330:Multidetector Computed Tomography / Q000379:methods* / Q000662:veterinary; D011169:Portal Vein / Q000000981:diagnostic imaging*; D012189:Retrospective Studies