The breed commonly associated with congenital tracheal hypoplasia is which of the following?

The breed commonly associated with congenital tracheal hypoplasia is which of the following?

• A. Beagle
• B. English bulldog
• C. Pug
• D. Chihuahua

Answer: (B)

Congenital tracheal hypoplasia is a developmental undergrowth of the tracheal cartilage that results in a narrowed airway from birth. This makes the trachea less able to stay open, leading to coughing and breathing difficulties, especially with exercise or excitement. The English bulldog is the breed most classically linked to this condition. Bulldogs are highly represented among cases of congenital tracheal hypoplasia due to their brachycephalic anatomy and associated developmental airway abnormalities, making this breed the best-known example in veterinary literature and exams. Other small breeds like Beagles, Pugs, or Chihuahuas can have airway issues as well, but those problems are more often related to dynamic tracheal collapse or other brachycephalic airway syndrome features rather than a primary congenital tracheal hypoplasia.

Congenital tracheal hypoplasia is a developmental undergrowth of the tracheal cartilage that results in a narrowed airway from birth. This makes the trachea less able to stay open, leading to coughing and breathing difficulties, especially with exercise or excitement.

The English bulldog is the breed most classically linked to this condition. Bulldogs are highly represented among cases of congenital tracheal hypoplasia due to their brachycephalic anatomy and associated developmental airway abnormalities, making this breed the best-known example in veterinary literature and exams.

Other small breeds like Beagles, Pugs, or Chihuahuas can have airway issues as well, but those problems are more often related to dynamic tracheal collapse or other brachycephalic airway syndrome features rather than a primary congenital tracheal hypoplasia.