Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is normal . Mediastinal and hilar contours are unremarkable . Pulmonary vasculature is normal . Lungs are hyperinflated but clear without focal consolidation . No pleural effusion or pneumothorax is demonstrated . No acute osseous abnormalities are detected . Clips from prior cholecystectomy are noted in the right upper quadrant of the abdomen . Dextroscoliosis of the thoracolumbar spine is again noted . No subdiaphragmatic free air is present .
    OUTPUT:
    
No acute cardiopulmonary abnormality . No subdiaphragmatic free air .