Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest demonstrate well expanded lungs . There is minimal increased opacification of the right base , which likely represents atelectasis . The cardiomediastinal and hilar contours are unchanged ; moderate cardiomegaly persists . There is no pneumothorax , consolidation or pleural effusion . A left - sided PICC line ends in the distal SVC . Transcutaneous epicardial pacer leads are in unchanged position .
    OUTPUT:
    
No acute cardiopulmonary process .