Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is top - normal . Mediastinal contours are unremarkable . No focal consolidation is seen . There is no pleural effusion or pneumothorax . The lungs are relatively hyperinflated . Underlying pulmonary emphysema may be present .
    OUTPUT:
    
No acute cardiopulmonary process .