Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Overall , appearances are very similar when compared to the prior study . Even allowing for the projection , the heart is enlarged . There is persistent opacity at the left lung base likely reflecting a combination of pleural effusion and atelectasis , superimposed infection can not be excluded . The right upper lobe consolidation is not as clearly seen as on the prior study . No pneumothorax seen .
    OUTPUT:
    
No significant interval change when compared to the prior study .