Obstructive Pyogranulomatous Laryngitis in a Dog Treated with Permanent Tracheostomy

Abstract

Obstructive inflammatory laryngeal disease (OILD), which requires tracheostomy as emergency management, has been reported in cats but not in dogs. We experienced an OILD-like case in a dog which we treated with a permanent tracheostomy. A 9-year-old male miniature dachshund was presented with acute onset of dyspnea. The dog was dyspneic with cyanosis, and radiography revealed a mass lesion at the laryngeal area. Direct observation under laryngoscopy showed a marked enlargement of the arytenoid cartilages and a mass at the dorsal larynx. Because withdrawal of oxygen therapy resulted in dyspnea, a permanent tracheostomy was performed after biopsy of the laryngeal mass. Histopathologically, a diagnosis of pyogranulomatous inflammation was made. The dog’s respiratory status returned to normal immediately after surgery, and was normal without dyspnea at 23 months after surgery. Permanent tracheostomy with medical therapy is considered a treatment of choice in dogs with dyspnea from OILD.