Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate general radiolucency within bilateral lungs to suggestive mild overinflation . The lungs are otherwise without nodules , mass , or focal consolidation to suggest pneumonia . There is nonspecific calcification within the right lower lung zone which may represent calcification versus foreign body in or around the bronchi . The cardiomediastinal and hilar contours are unremarkable . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
No evidence of mass or nodule . Mild overinflation consistent with emphysematous changes .