Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest demonstrate well expanded , clear lungs . The cardiomediastinal and hilar contours are unchanged , given patient rotation to the left . There is no pneumothorax , pleural effusion , or consolidation . A pacemaker is in place with leads ending in the right atrium and right ventricle , and unchanged position .
    OUTPUT:
    
No acute cardiopulmonary process .