Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest . There are increased opacities in the lungs , left greater than right . Cardiac silhouette is enlarged , new since prior . Median sternotomy wires are noted with fracture of the top two wires similar to prior .
    OUTPUT:
    
Bilateral parenchymal opacities , left greater than right , suggestive of pulmonary edema although infection is also possible .