Recurrent fever as the only or predominant clinical sign in four dogs and one cat with congenital portosystemic vascular anomalies
2003
Wess, G. | Unterer, S. | Haller, M. | Hasler, A. | Reusch, C. | Glaus, T. (University of Zuerich, Zuerich (Switzerland). Clinic for Small Animal Internal Medicine)
Fever is not considered a typical clinical sign in animals with portosystemic vascular anomalies (PSVA). In a time period of 8 years, PSVA was diagnosed in 23 cases (20 dogs, 3 cats) at the Animal Hospital of the University of Zurich. Of these, recurrent fever was the only, the predominant or an early sign in 5 animals. Fever and associated unspecific clinical signs like lethargy, inappetence, and reluctance to move were present for weeks to months before the final diagnosis of PSVA was made. It was the lack of typical and well-known signs of PSVA that obscured and delayed the diagnosis. Therefore, PSVA should be included in the differential diagnosis of animals with fever of unknown origin (FUO).
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