Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been improvement of the left pleural effusion and slightly increased right - sided pleural effusion since the prior radiograph . There is no focal consolidation or pneumothorax . The Cardiomediastinal silhouette is unchanged . A left PICC line is seen coursing through the brachiocephalic vein ; however , the tip can not be definitely identified on this study .
    OUTPUT:
    
Improved left - sided pleural effusion with slightly increased right - sided pleural effusion . No pneumothorax .