Approach to the differential diagnosis of pneumonia in immune suppressed patients:
- Pneumocystis jiroveci pneumonia should be suspected in a patient with fine reticular infiltrates, but Pneumocystis jiroveci pneumonia has an extremely variable imaging appearance
- Lymphocytic interstitial pneumonitis should be suspected in a patient with nodular interstitial infiltrates
- Invasive aspergillosis should be suspected in a patient with a mass-like lesion, CT likely will confirm the diagnosis
Pediatric Imaging 