Lobar pneumonia
☆S pneumoniae most frequently, also Legionella, Klebsiella
Intra-alveolar exudate consolidation
(Can involve the entire lobe or the whole lung)
Bronchopneumonia
S pneumoniae, S aureus, H influenzae, Klebsiella
Acute inflammatory infiltrates from bronchioles into adjacent alveoli
(usually the lower lobes or right middle lobe)
Interstitial (atypical) pneumonia
Mycoplasma, Chlamydophila pneumoniae, Chlamydophila psittaci, Legionella, viruses (RSV, CMV, influenza, adenovirus)
respiratory
microbiology
UWorld
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