ABSTRACT
Congenital deformities of the larynx are uncommon in dogs and cats and only those animals with severe obstructions will be presented for evaluation. The most common condition is brachycephalic obstructive airway syndrome. In all brachycephalic dogs the laryngeal structures are hypoplastic to some degree. A hypoplastic larynx is smaller than that of a normal dog of similar weight. On top of this, collapse of the larynx can occur, secondary to the chronic upper airway obstruction. These conditions have been discussed in Chapter 11 Diseases of the Nasal Cavity and Sinuses, Section 11.3 and Chapter 19 Surgery of the Nose, Section 19.3. Congenital glottic and subglottis stenosis will be reviewed in this chapter.
