Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are hyperinflated , suggesting background COPD . Right size is at the upper limits of normal . No CHF , focal infiltrate or effusion is detected . Probable mild eventration of the right hemidiaphragm . Scattered bilateral carotid artery calcification noted .
    OUTPUT:
    
Suspected background COPD . No focal infiltrate to suggest pneumonia or aspiration . No free air seen beneath the diaphragm .