Catarrhal Inflammation

• Catarrhal inflammation is a mild form of inflammation.
• Occurs on mucous membranes where there are many mucus cells.
• The consistency of catarrhal exudate varies from water to gelatinous.
• Colour varies from cloudy to pinkish.
• This form of exudation is essentially a shedding of epithelium containing many mucus cells, neutrophils, some RBCs, and flecks of fibrin.

• Common in mild forms of rhinitis, tracheitis, bronchitis, gastritis and enteritis.