Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . There is no pneumothorax . The heart and mediastinum are within normal limits . Mammilation of the bilateral hemidiaphragms is unchanged . Multiple right upper quadrant metallic surgical clips may be due to prior cholecystectomy . The bones are unremarkable .
    OUTPUT:
    
Clear lungs with no evidence of residual pneumonia .