signs of infection Flashcards

1
Q
Upper lobe changes - ?
Cavitation - ?
Cavitation and immunosuppressed -?
Bilateral and perihilar - ?
Nodular - ?
A

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

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2
Q

Causes of the following on chest xr

Fluid 
Pus
Blood 
Cells 
Protein
A
  • 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

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3
Q

‘Random distribution’ of nodules seen on the HRCT is typical of

A

haematogenous spread of TB.

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4
Q

Patterns seen on pulmonary infection?

A
Confluent
- consolidation
- ground glass
Nodules
Lines
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5
Q

What does ground glass mean?

A

indicates diffuse opacification of lung without obscuration of the vascular structures

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6
Q

Pneumocystis jirovecii pneumonia is typically associated with what kind of pattern

A

ground-glass opacification.

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