Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are normal . Normal size of the cardiac silhouette . Normal hilar and mediastinal structures . No pneumonia , no pulmonary edema . No pleural effusions . No pneumothorax . Displaced fracture of the lateral aspect of the ___ right posterior rib is unchanged . Previously seen left rib fracture is unable to be seen on today 's exam . No new rib fractures .
    OUTPUT:
    
No evidence of pneumonia . Stable right rib fracture . No new rib fractures .