Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right tunneled line terminates within the right atrium . The heart size is normal , exaggerated by AP projection . The lung volumes are very low . There is no pneumothorax or focal consolidation . A trace right pleural effusion is present . There is central pulmonary vascular congestion , but no overt edema .
    OUTPUT:
    
Very low lung volumes . No consolidation . Small right pleural effusion .