Numerous L1 can be seen wthin the uteri of the female worms. This is a preserved specimen of a trachea of a dog infected with F. osleri. Note the numerous wart-like nodules present at the bifurcation of the trachea and extending into the bronchi. During the last 2-3 weeks there was periodic respiratory distress, the dog would have labored breathing, become cyanotic, and passs out. During attacks the dog became cyanotic.
Decreased lung sounds on the right side.
Radiographs indicated a spherical density of the ventral aspect of the trachea at the level of the right cardiac border. Several were large enough to obstruct bronchi during deep inspiration. Removed enough to make a patent opening. Pathology indicated granulomas containing nemerous nematodes. Dog was sent home.