Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low which leads to bronchovascular crowding . There is atelectasis at the left lung base . Scattered opacities are seen in the right upper lung zone compatible with metastatic disease , which are better assessed on prior CT from ___ . The cardiomediastinal silhouette and hilar contours are stable . There is no pleural effusion or pneumothorax . A left upper extremity PICC terminates at the cavoatrial junction , as before .
    OUTPUT:
    
1 . Low lung volumes with atelectasis at the left lung base . No focal consolidation . 2 . Known bilateral pulmonary metastases better evaluated on prior CT chest ___ ___ . 3 . PICC terminating in the cavoatrial junction .