Changes

**Obstruction to airflow

**Obstruction to airflow

**[[Lungs Inflammatory - Pathology#Aspiration pneumonia|Aspiration pneumonia]]

**[[Lungs Inflammatory - Pathology#Aspiration pneumonia|Aspiration pneumonia]]

*Acute inflammation passes through the same stages as in [[Nasal Cavity Inflammatory - Pathology#Rhinitis|rhinitis]]

*Acute inflammation passes through the same stages as in [[Rhinitis#Rhinitis|rhinitis]]

*In '''pigs''', foreign material may lodge in the '''posterior diverticulum''' of the pharynx and cause inflammation, potentially perforation (also accidental in sheep during drenching) and fatal cellulitis

*In '''pigs''', foreign material may lodge in the '''posterior diverticulum''' of the pharynx and cause inflammation, potentially perforation (also accidental in sheep during drenching) and fatal cellulitis