Pathology of the Upper Respiratory System Flashcards
What is stenotic airway syndrome of dogs?
airflow is obstructed by excessive soft tissue in soft palate
What are the lesions involved in stenotic airway syndrome in dogs?
- stenotic external nares
- excessive length of soft palate
- everted laryngeal saccules
- laryngeal collapse
- hypoplastic trachea
What breeds are usually affected in stenotic airway syndrome?
bulldogs boxers boston terriers pugs pekingese (brachycephalic dogs)
Name a respiratory virus of horses, cattle, cats, and chickens that can assume a latent stage in neural tissue.
herpesvirus
What are the similarities between the different herpesviruses?
- latent stage in neural tissue
- cause rhinitis
- secondary bacterial infection can occur
- signs include malaise, fever, cough, and nasal discharge
What is the most common primary neoplasm in the nasal cavity and the lung of dogs?
carcinoma?
How does bacterial infection complicate the diagnosis of a nasal neoplasm in cats and dogs?
it confuses the diagnosis because bacterial infection can change the look on radiographs (inflamed soft tissue)
List 3 respiratory diseases that can or might promote exercise intolerance in race horses.
- strangles (streptococcus equi)
- equine viral rhinopneumonitis (EVR) (equine herpes virus 1 and 4)
- influenza (equine influenza A)
Which equine respiratory disease can be associated with stabling/indoor housing?
equine influenza
What is the most common nasal neoplasm in dogs, cats, and horses?
nasal carcinoma
What is the possible behavior of nasal carcinoma in dogs?
- destroy bone and soft tissue
- invade cribiform plate and brain
What is the guttural pouch of horses?
ventral diverticulum of Eustachian tube
What are two agents that often infect the guttural pouch?
- aspergillus
- streptococcus equi
How can guttural pouch disease cause epistaxis?
erosion of the carotid artery
How can guttural pouch disease cause dysphagia?
damage to pharyngeal nerves
