Bat-Wing Appearance
October 21st, 2019
Overview
Look For
- A central, peri-hilar distribution of consolidation on chest x-ray.
Significance
- The bat-wing appearance is classically a sign of pulmonary oedema.
Example
- Batwing opacities consistent with acute pulmonary oedema
![Batwing opacities consistent with acute pulmonary oedema]()
Causes of Bat-Wing Appearance
- Pulmonary oedema (cardiogenic / noncardiogenic)
- Atypical infection - PJP, fungal pneumonia
- Aspiration pneumonitis
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