Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A central venous catheter terminating in the right atrium , appears unchanged . Epicardial leads appear unchanged . The heart is normal in size . The lungs appear clear . There is no pleural effusion or pneumothorax . Elevation of the left hemidiaphragm appears similar . Bony structures are unremarkable .
    OUTPUT:
    
No evidence of acute disease .