signs of infection Flashcards
Upper lobe changes - ? Cavitation - ? Cavitation and immunosuppressed -? Bilateral and perihilar - ? Nodular - ?
Upper lobe changes - think TB
Cavitation - think TB, Staphylococcus aureus and gram negative infections
Cavitation and immunosuppressed - think aspergillus
Bilateral and perihilar - think PJP
Nodular - think TBv
Causes of the following on chest xr
Fluid Pus Blood Cells Protein
- cardiogenic and non-cardiogenic pulmonary oedema, protein
Pus - pneumonia
Blood - vasculitis, infarction
Cells - malignant (lymphoma, alveolar cell carcinoma) and inflammatory (sarcoid, extrinsic allergic alveolitis (EAA), eosinophilia, radiation, bronchiolitis obliterans organizing pneumonia (BOOP))
Protein - alveolar proteinosis
‘Random distribution’ of nodules seen on the HRCT is typical of
haematogenous spread of TB.
Patterns seen on pulmonary infection?
Confluent - consolidation - ground glass Nodules Lines
What does ground glass mean?
indicates diffuse opacification of lung without obscuration of the vascular structures
Pneumocystis jirovecii pneumonia is typically associated with what kind of pattern
ground-glass opacification.