Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Focal opacity at the left cardiophrenic angle is compatible with a fat pad . The lungs are otherwise clear . Cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities identified . Extensive hypertrophic changes are noted in the thoracic spine . Surgical clips noted in the upper abdomen .
    OUTPUT:
    
No acute cardiopulmonary process .