Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest compared to previous exam from ___ . The lungs are clear , where not obscured by overlying cardiac leads . Cardiomediastinal silhouette is within normal limits . There is no obvious pneumothorax or large effusion . No displaced fractures are identified .
    OUTPUT:
    
No acute cardiopulmonary process .