Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs show bilateral lower lobe opacities with moderate associated effusions . Nodular opacities in the right lung likely represent known history of cancer . The cardiac silhouette is enlarged . The mediastinal silhouette and hilar contours are normal . No pneumothorax is present .
    OUTPUT:
    
Unchanged moderate bilateral effusions with associated atelectasis .