Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right internal jugular central venous catheter tip terminates in the proximal right atrium , unchanged . There are low lung volumes . The heart size appears mildly enlarged but stable . The mediastinal and hilar contours are slightly widened , but this appears unchanged and is likely due to supine technique and low lung volumes . There is a small - to - moderate - sized left pleural effusion , and a small right pleural effusion , with improved aeration of the right lung base . There is persistent opacification in the left lung base , which could reflect an area of atelectasis , infection , or aspiration . Crowding of the bronchovascular structures is present , though mild pulmonary vascular congestion can not be completely excluded . There is no pneumothorax .
    OUTPUT:
    
Persistent left basilar opacification may represent atelectasis , pneumonia or aspiration . Moderate - sized left and small right bilateral pleural effusions . Possible mild pulmonary vascular congestion , though evaluation is somewhat limited due to low lung volumes .