Changes

*Extensive accumulation of fibrin and necrotic cellular debris on the ulcerated mucosal surface  

*Extensive accumulation of fibrin and necrotic cellular debris on the ulcerated mucosal surface  

*Lesions appear as dry plaques of fibrinonecrotic exudate and ulceration on the laryngeal mucosa

*Lesions appear as dry plaques of fibrinonecrotic exudate and ulceration on the laryngeal mucosa

*Inhalation of exudate and bacterial organisms may cause [[Bronchitis#Infectious causes of bronchitis or bronchiolitis|broncho]][[Lungs Inflammatory - Pathology#Infectious causes of pneumonia|pneumonia]]

*Inhalation of exudate and bacterial organisms may cause [[Bronchitis#Infectious causes of bronchitis or bronchiolitis|broncho]][[Pneumonia Overview#Infectious causes of pneumonia|pneumonia]]

*Death may result from toxaemia or asphyxiation

*Death may result from toxaemia or asphyxiation

*Also may occur in pigs

*Also may occur in pigs