Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated but clear . Small calcific densities projecting over the left posterior sixth rib are likely calcified granulomas . The cardiomediastinal silhouette , hilar contours , and pleural surfaces are normal . There is no pleural effusion or pneumothorax . There is no free air under the diaphragm .
    OUTPUT:
    
No free air under the diaphragm . Clear hyperinflated lungs .