Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperexpanded . There is no pleural effusion , pneumothorax or focal airspace consolidation . The cardiac silhouette is normal in size . Prominence of the mediastinum from a markedly tortuous aorta is unchanged . The pulmonary vasculature is normal .
    OUTPUT:
    
No acute cardiopulmonary process .