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Test Findings
 
 

Bat-Wing Appearance

 
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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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