Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Patient 's known pulmonary nodules are better assessed on recent CT of the chest . There is increased opacity in the right lower lung which could reflect atelectasis versus pneumonia . There is also increasing retrocardiac opacity suggesting left lower lobe atelectasis versus pneumonia . Tiny pleural effusions are likely present . Cardiac silhouette is unchanged . Mediastinal contour is normal . Bony structures are intact .
    OUTPUT:
    
Increased opacities in the lower lungs concerning for atelectasis versus pneumonia . Pulmonary nodules better assessed on prior CT . Probable tiny pleural effusions .