Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided Port - A - Cath tip terminates at the cavoatrial junction . Heart size is mildly enlarged but unchanged . Mediastinal and hilar contours are similar with enlargement of the pulmonary arteries again noted . Pulmonary vasculature is normal . Linear opacity in the right lung base likely reflects atelectasis or scarring . No focal consolidation , pleural effusion or pneumothorax is present . Clips are noted in the left upper quadrant of the abdomen .
    OUTPUT:
    
Right basilar subsegmental atelectasis or scarring . No new focal consolidation .