Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left chest wall pacer has leads in the right atrium and right ventricle . Right Port - A - Cath terminates in the low SVC . There is no pleural effusion or pneumothorax . With exception of mild atelectasis of the left base and right midlung , the lungs are clear . Heart size is normal . Mediastinal and hilar contours are normal .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Minimal atelectasis at the left base .