Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to prior chest radiograph from ___ , there has been slight increase of the moderate sized right pleural effusion with associated compressive atelectasis , although an underlying consolidation can not be excluded . Left lung is grossly unremarkable . The cardiac silhouette appears mildly enlarged , not significantly changed from prior examination . There is no pneumothorax or focal consolidation .
    OUTPUT:
    
Slight increase of moderate - sized right pleural effusion with associated atelectasis . Left lung is clear .