Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were performed . The lungs are clear . There is no pleural effusion , pneumothorax or focal airspace consolidation . The cardiac silhouette is mild to moderately enlarged but unchanged from prior . There is no pulmonary edema . The mediastinal contours are normal . Old healing rib fractures of the right posterior lateral ___ and 9th ribs are unchanged from ___ . There is no acute displaced anterior rib fracture .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . No acute rib fracture . If concern for a fracture persists , a dedicated rib series with markers would be useful .