Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded . There is a faint focal opacity in the right upper lobe , which likely reflects atelecatis , unchanged form prior CT . Cardiomediastinal silhouette is unremarkable . There is no pneumothorax or pleural effusion . Visualized osseous structures are unremarkable . Surgical clips are noted in the right upper quadrant , which likely reflect prior cholecystectomy .
    OUTPUT:
    
No acute cardiopulmonary process .