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. Signs are seasonal and occur under 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 discharges 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 a consideration.
OTHER TOPICS IN THIS CHAPTER
Respiratory Diseases of Cattle
Overview of Respiratory Diseases of Cattle
Allergic Rhinitis and Enzootic Nasal Granuloma in Cattle
Sinusitis in Cattle
Necrotic Laryngitis in Cattle
Tracheal Edema Syndrome of Feeder Cattle
Bovine Respiratory Disease Complex
Enzootic Pneumonia of Calves and Shipping Fever Pneumonia
Viral Respiratory Tract Infections in Cattle
Bacterial Pneumonia in Cattle
Contagious Bovine Pleuropneumonia
Interstitial Pneumonia in Cattle
Acute Bovine Pulmonary Emphysema and Edema
Anaphylaxis in Cattle
Hypersensitivity Pneumonitis in Cattle
Diffuse Fibrosing Alveolitis in Cattle
Acute Respiratory Distress Syndrome of Feedlot Cattle
4-Ipomeanol Toxicity (Moldy Sweet Potato) and Perilla Ketone Toxicity (Purple Mint Toxicity) in Cattle
Toxic Gases in Respiratory Disease of Cattle
Vena Caval Thrombosis and Metastatic Pneumonia in Cattle
