Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal contours are stable in appearance . There is slight interval improvement in the aeration of the lungs compared to the prior exam . There has been interval improvement in the small right pleural effusion , with an adjacent consolidation likely secondary to atelectasis . Small left pleural effusion is stable . There is no pneumothorax .
    OUTPUT:
    
Slight interval improvement in the right pleural effusion , with an adjacent consolidation likely secondary to atelectasis , however an infectious process can not be excluded .