Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low , however the lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable . A rounded calcific density projecting over the heart on the lateral view is unchanged from prior and may represent a coronary stent .
    OUTPUT:
    
No acute cardiopulmonary process .