Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided Port - A - Cath tip terminates in the proximal right atrium , unchanged . Mild enlargement of cardiac silhouette is re - demonstrated . The mediastinal contours are stable . There is mild pulmonary vascular congestion . Linear atelectasis in the left mid lung field is noted along with streaky opacities in the right lung base , likely atelectasis . There is no pleural effusion or pneumothorax . No subdiaphragmatic free air seen .
    OUTPUT:
    
Mild pulmonary vascular congestion and bibasilar atelectasis . No subdiaphragmatic free air .