Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are within normal limits . The trachea is central . The cardiomediastinal contour is normal . The heart is not enlarged . No lobar consolidation seen , no pneumothorax or pleural effusion . Visualized bony structures are grossly normal .
    OUTPUT:
    
No acute cardiopulmonary process seen .