Which pattern shows patchy involvement of multiple lobes rather than a single consolidation?

Which pattern shows patchy involvement of multiple lobes rather than a single consolidation?

• A. Bronchopneumonia
• B. Lobar pneumonia
• C. Necrotizing pneumonia
• D. Interstitial pneumonia

Answer: (A)

Patchy, multifocal involvement across several lobes on imaging points to bronchopneumonia. This pattern arises when infection spreads along the airways, producing multiple small patches of airspace consolidation around the bronchioles rather than one continuous, dense area confined to a single lobe. In contrast, a single lobe consolidation is typical of lobar pneumonia, where the entire lobe becomes solidified. Interstitial pneumonia shows diffuse interstitial markings rather than focal airspace opacities, and necrotizing pneumonia involves tissue destruction with potential cavitation rather than the described patchy multi-lobe pattern.

Patchy, multifocal involvement across several lobes on imaging points to bronchopneumonia. This pattern arises when infection spreads along the airways, producing multiple small patches of airspace consolidation around the bronchioles rather than one continuous, dense area confined to a single lobe.

In contrast, a single lobe consolidation is typical of lobar pneumonia, where the entire lobe becomes solidified. Interstitial pneumonia shows diffuse interstitial markings rather than focal airspace opacities, and necrotizing pneumonia involves tissue destruction with potential cavitation rather than the described patchy multi-lobe pattern.