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Pulmonary pythiosis in a canine patient
- Kepler, Darin, Cole, Robert, Lee‐Fowler, Tekla, Koehler, Jey, Shrader, Stephanie, Newton, Joe
- Veterinary radiology & ultrasound 2019 v.60 no.2 pp. E20
- Pythium insidiosum, antibiotics, biopsy, bronchoscopy, computed tomography, cough, dogs, hyphae, inflammation, lymphatic diseases, patients, radiography
- A Staffordshire terrier presented for evaluation of a chronic, nonproductive cough that was unresponsive to antibiotic therapy. A large mass identified in the pulmonary hilum was most consistent with tracheobronchial lymphadenopathy on radiographic and computed tomography (CT) images. Bronchoscopy confirmed a mass compressing the dorsal portion of the intrathoracic trachea. Bronchoscopic biopsies of the tracheal mass revealed necrosuppurative and eosinophilic inflammation with intralesional Pythium insidiousum hyphae. Pythiosis should be included as a differential diagnosis for tracheobronchial lymphadenopathy and bronchopneumopathy in dogs, especially when the patient is from or has visited a region endemic for Pythium insidiosum.