Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low but otherwise the lungs are clear . The cardiac silhouette remains mildly enlarged . Tortuosity of the aorta contributes to widening of the mediastinum , stable . The cardiac and mediastinal silhouettes are stable . No pulmonary edema or pleural effusion . No focal consolidation is identified .
    OUTPUT:
    
No acute cardiopulmonary process .