Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the radiographs obtained 2 days prior , there has been a significant decrease in the size of the right pleural effusion , though it is still at least moderate in size and tracks up the right mediastinal border . There is atelectasis of the inferior right upper lobe with hyperexpansion of the right middle lobe . No pneumothorax . Left lung is fully expanded and clear without focal consolidation or pleural effusion . Left cardiomediastinal and hilar silhouettes are normal .
    OUTPUT:
    
Decreased , still large right pleural effusion , unchanged associated right lower lobe atelectasis . No pneumothorax .