Tracheal pseudomembrane secondary to aspiration pneumonia in a 6-year-old Ragdoll

Author:

Kwong Hannah1,Fry Darren1,Birnie Gemma1

Affiliation:

1. Small Animal Internal Medicine, Brisbane Veterinary Specialist Centre, Brisbane, QLD, Australia

Abstract

Case summary A 6-year-old female spayed Ragdoll presented with a 4-day history of acute onset non-productive retching, coughing and anorexia. A complete blood count, serum biochemistry, thoracic radiography and abdominal ultrasound were performed. Initially, aspiration pneumonia was suspected owing to an alveolar lung pattern in the right cranial ventral lung lobes seen on radiographs. The cat did not improve with empirical antibiotic therapy. Bronchoscopy and bronchoalveolar lavage were performed. An intraluminal tracheal mass was identified and removed via endoscopic guidance and gentle traction. Histopathology results were consistent with a fibrinous tracheal pseudomembrane. The cat was concurrently diagnosed with Pseudomonas aeruginosa pneumonia, which was confirmed on bronchoalveolar lavage. Pseudomonas aeruginosa was also cultured within the pseudomembrane. The cat was received antimicrobial therapy for his Pseudomonas pneumonia. In humans, fibrinous tracheal pseudomembranes occur uncommonly as a complication following endotracheal intubation and rarely due to infectious organisms. As there was no prior history of endotracheal intubation, the development of fibrinous tracheal pseudomembrane in this cat was suspected to be secondary to Pseudonomas aeruginosa aspiration pneumonia. Relevance and novel information The present case report is the first to describe a tracheal pseudomembrane in a cat. Bronchoscopy-guided gentle traction and subsequent removal of the tracheal pseudomembrane resulted in a complete resolution of the clinical signs.

Publisher

SAGE Publications

Subject

Small Animals

Reference13 articles.

1. Obstructive Fibrinous Tracheal Pseudomembrane

2. Recurrent Obstructive Fibrinous Tracheal Pseudomembranes in a Young English Bulldog

3. Robert AF. Female reproductive system and mammae. In: Zachary JF (ed.). Pathologic basis of veterinary disease. 6th ed. New York: Elsevier, 2017, pp 1147–1193.

4. Unique Case of Pseudomembranous Aspergillus Tracheobronchitis: Tracheal Perforation and Horner’s Syndrome

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