Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The trachea is central . The cardiomediastinal contour is within normal limits . The heart is not enlarged . Mild elevation of the right hemidiaphragm is similar when compared to the prior study . No consolidation , pneumothorax or pleural effusion seen . No free air seen under the diaphragm . Visualized bony structures are unremarkable in appearance .
    OUTPUT:
    
No acute cardiopulmonary process seen .