title: Imaging diagnosis-aortic aneurysm and ureteral obstruction secondary to umbilical artery abscessation in a 5-week-old foal.
abstract: A 5-week-old foal was evaluated for fever and hematuria of 3 days duration. Cystoscopy localized the blood to be originating from the left ureter. Abdominal ultrasonography revealed left hydronephrosis, hydroureter, and omphaloarteritis of the left umbilical artery with abscess formation that communicated with an arterial structure. Computed tomography (CT) revealed a large aortic aneurysm within the center of the abscess. An exploratory celiotomy was performed and the infection was nonresectable. The prognosis for life was grave; therefore the colt was euthanized. Necropsy findings confirmed the antemortem diagnosis. Ultrasound and CT imaging in this case provided an accurate antemortem diagnosis.
authors.affiliation: William R. Pritchard Veterinary Medical Teaching Hospital, One Shields Ave, Davis, CA, 95616.
authors.forename: Nora
authors.initials: N
authors.lastname: Nogradi
authors.affiliation: Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, CA, 95616.
authors.forename: K Gary
authors.initials: KG
authors.lastname: Magdesian
authors.affiliation: Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, CA, 95616.
authors.forename: Mary Beth
authors.initials: MB
authors.lastname: Whitcomb
authors.affiliation: William R. Pritchard Veterinary Medical Teaching Hospital, One Shields Ave, Davis, CA, 95616.
authors.forename: Molly
authors.initials: M
authors.lastname: Church
authors.affiliation: Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, CA, 95616.
authors.forename: Mathieu
authors.initials: M
authors.lastname: Spriet
mesh_terms: D000038:Abscess / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology / Q000662:veterinary*; D000818:Animals; D001014:Aortic Aneurysm / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000473:pathology / Q000662:veterinary*; D003937:Diagnosis, Differential; D017809:Fatal Outcome; D006734:Horse Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D006736:Horses; D008297:Male; D014057:Tomography, X-Ray Computed / Q000662:veterinary; D014463:Ultrasonography / Q000662:veterinary; D014469:Umbilical Arteries / Q000000981:diagnostic imaging / Q000473:pathology*; D014517:Ureteral Obstruction / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000473:pathology / Q000662:veterinary*
keywords: aneurysm; computed tomography; hematuria; omphalitis; ultrasound; umbilicus