Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . Cardiomediastinal silhouette and hilar contours are unremarkable . A tunneled dialysis catheter is seen terminating in the right atrium . The patient has an IVC filter in place . No pleural effusion or pneumothorax is seen .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .