Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right central line tip sits in the mid SVC . The cardiomediastinal contours are unchanged . The lungs continue to demonstrate mild bibasilar atelectasis . The previously described left pleural effusion has decreased . There is no pneumothorax .
    OUTPUT:
    
Bibasilar atelectasis with decrease in left pleural effusion ; no pneumothorax .