Pulmonary pseudomonas aeruginosa infection
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Pulmonary pseudomonas aeruginosa infection is an uncommon cause of community-acquired pneumonia but can be a common cause of nosocomial pneumonia. It becomes increasingly important in critically ill and ventilated patients.
Pneumonia due to Pseudomonas aeruginosa can occurs as several distinct syndromes 3:
- community acquired pneumonia - usually in patients with chronic lung disease
- hospital-acquired pneumonia - usually occurring in the ICU setting -ventilator associated pneumonia
- bacteremic pseudomonas aeruginosa pneumonia - usually in the neutropenic host
Radiographic features
CT - HRCT chest
It can have a number of radiographic presenations with the commonest patterns being 1,4
- areas of ground-glass attenuation - tends to involve multiple lobes and may demonstrate an upper zonal predilection 4
- bronchial wall thickening
- peribronchial infiltration and areas of consolidation.
A pleural effusion may be present in approximately 40% of patients.
Other uncommon features include intralobular reticular opacities, pleural enhancement, pulmonary cavities and centrilobular nodules.
-<li>community acquired pneumonia - usually in patients with chronic lung disease</li>-<li>hospital-acquired pneumonia - usually occurring in the ICU setting -<a href="/articles/ventilator-associated-pneumonia">ventilator associated pneumonia</a>- +<li>
- +<a title="community acquired pneumonia" href="/articles/community-acquired-pneumonia">community acquired pneumonia</a> - usually in patients with chronic lung disease</li>
- +<li>
- +<a title="Hospital acquired pneumonia" href="/articles/hospital-acquired-pneumonia">hospital-acquired pneumonia</a> - usually occurring in the ICU setting -<a href="/articles/ventilator-associated-pneumonia">ventilator associated pneumonia</a>
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