Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: When compared to previous exam , the large right pleural effusion has increased in size . There is adjacent atelectasis . The left lung is clear without consolidation or effusion . Cardiac silhouette is unchanged . No acute osseous abnormalities . Calcifications in the right upper quadrant are likely due to known cholelithiasis .
    OUTPUT:
    
Large right pleural effusion has increased since ___ .