Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart shows stable cardiomegaly . The mediastinal and hilar contours are unremarkable . The previously described left mid upper lung opacity has improved in appearance . The left lower lobe consolidation appears similar . Subtle blunting of the left costophrenic angle may also indicate a trace amount of pleural fluid in that locale . There is no pneumothorax .
    OUTPUT:
    
Improving right upper lobe consolidation ; stable appearance of the left lower lobe consolidation with probable trace pleural effusion on the left .