Bronchopneumonia (Lobular pneumonia) - foci of isolated acute suppurative inflammatory consolidation, affecting one or more pulmonary lobes.

Pathology

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Macroscopically: Multiple foci of consolidation are present in the basal lobes, often bilateral. These lesions are 2-4 cm in diameter, grey-yellow, dry, often centered by a bronchia, are poorly delimited and have the tendency to confluence, especially in children.

Microscopically: A focus of inflammatory condensation is centered by a bronchiola with acute bronchiolitis (suppurative exudate - pus - in the lumen and parietal inflammation). Alveolar lumens surrounding the bronchia are filled with neutrophils ("leukocytic alveolitis"). Massive congestion is present. Inflammatory foci are separated by normal, aerated parenchyma. Photos at: 1

External links

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• Atlas of Pathology

Pneumonia