Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again noted is mild hyperinflation of both lungs suggestive of underlying emphysema or small airways obstruction . Mild streaky opacification in the right middle lobe decreased on today 's examination compared to the prior study . This may represent minimal residual atelectasis , similar to prior studies dating back to ___ . The lungs are otherwise relatively clear without focal consolidation concerning for pneumonia , significant pleural effusion or pneumothorax . The pulmonary vasculature is not engorged . The cardiac silhouette is normal in size . The mediastinal and hilar contours are within normal limits and unchanged from the prior study . The visualized upper abdomen demonstrates overlying metallic density compatible with a belt buckle . Radiopaque densities projecting in the left upper abdomen are partially excluded from view on the frontal radiograph and of uncertain clinical significance .
    OUTPUT:
    
No focal consolidation concerning for pneumonia . Minimal residual right middle lobe atelectasis .