Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . Opacity at the left cardiophrenic angle there is compatible prominent fat pad and lingular scarring as seen on prior CT . The lungs are otherwise clear . The cardiomediastinal silhouette is within normal limits . Old posterior right rib fracture is noted .
    OUTPUT:
    
No acute cardiopulmonary process .