Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal view of the chest was obtained . Mild - to - moderate cardiomegaly is similar to prior with stable cardiomediastinal contours . Lungs remain clear albeit with lower lung volumes on this exam . No pleural effusion or pneumothorax . No radiopaque foreign body . Old right inferior , lateral rib fracture seen .
    OUTPUT:
    
No evidence for acute cardiopulmonary process .