VERSÃO PARA PROFISSIONAIS DE SAÚDE

Allergic Rhinitis and Enzootic Nasal Granuloma in Cattle

PorJohn Campbell, DVM, DVSc, Department of Large Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan
Revisado/Corrigido dez. 2022 | Modificado set. 2024
v3293266_pt

Allergic rhinitis is an uncommon disease of cattle that, when chronic, may lead to granuloma formation. The etiology is an allergic reaction to pollen or fungal spores. Clinical signs are seasonal, occurring in warm, moist conditions; they include rhinorrhea, sneezing, and a sudden onset of dyspnea. In the chronic stage, multiple granulomas may form on the mucosal surface of the nasal cavity. Cytologic examination of nasal discharge samples may reveal eosinophils.

Treatment should focus on removing the allergen or removing the animal from the allergen. Treatment with corticosteroids to block the hypersensitivity reaction is also a consideration.