Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is bibasilar atelectasis , unchanged from the prior day . Mild pulmonary vascular congestion is still present . No pleural effusion or pneumothorax . Heart size is stable . A large amount of air is noted within the colon , which is incompletely imaged .
    OUTPUT:
    
Bibasilar atelectasis and mild vascular congestion .