Many clinical signs in horses warrant endoscopy of the respiratory tract, writes Kate L. Hepworth-Warren, DVM, DACVIM. Although endoscopy as a diagnostic tool is often thought of for upper airway dysfunction only, it can be a useful adjunct in other respiratory conditions of both the upper and lower respiratory tracts. She describes evaluations and scoring systems when using endoscopy.
Source: DVM 360, November 30, 2020. Link.