Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to previous radiograph from ___ , there has been substantial change . There has been unilateral progression of the disease , predominantly on the right , with marked increase of the right - sided pleural effusion . Increased right sided pleural fluid accentuates existing opacities , particularly the dense consolidation in the right upper lobe . There is atelectasis of the lower lobes . There has been no substantial change in the left side . Moderate cardiomegaly is unchanged . Monitoring and support devices are unchanged .
    OUTPUT:
    
Substantial interval worsening of right - sided pleural effusion with no substantial change in left lung .