Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: When compared to prior examination , there has been slight increase in bibasilar atelectasis as well as slight increase in small left pleural effusion . Cardiomediastinal silhouette and hilar contours are unchanged with note of pneumopericardium . There has been interval removal of a right IJ Swan - Ganz catheter . There is no pneumothorax .
    OUTPUT:
    
Slightly increased bibasilar atelectasis and left pleural effusion .