Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are underinflated and exaggerate the pulmonary vascular markings . However , the lungs are clear with no evidence of consolidation , effusion , or pneumothorax . Cardiomediastinal silhouette is normal . Old right healed rib fractures are noted .
    OUTPUT:
    
No acute cardiopulmonary process .