Aspergillus

Clinical presentation of infection with aspergillus depends on the host.

Fungus Ball
- Host with old cavity
- Mobile cavitary mass
- Halo sign
- Crescent sign
- Pleural reaction
Allergic Bronchopulmonary Aspergillosis
- Atopic host
- Central bronchiectasis
- Infiltrates
  - Waxing and waning
- Proximal bronchocele

Sub Acute Necrotizing Pneumonia
- Host with leukopenia
- Pneumonia
- Crescentic air
  - Cavitation with halo sign
- Lung Ball
Round Pneumonia
Invasive Aspergillosis
- Immune compromised host
- Wedge infiltrates
  - Invasion of pulmonary artery branches
- Bilateral diffuse