Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes have decreased since previous examination . Bibasilar opacities are increased from the previous examination . Mild vascular congestion and possibly edema are also noted . Cardiomegaly is moderate and stable .
    OUTPUT:
    
Increase in bibasilar opacities is concerning for interval aspiration event . Mild edema is likely also present .