Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated . Slight increased right basilar opacity is seen on the frontal but not definitively corroborated on the lateral . The cardiac silhouette is enlarged but not likely changed since prior given slightly lower lung volumes on the current exam . Surgical clips project over the mid upper abdomen . Chronic changes seen in the left posterior eighth rib .
    OUTPUT:
    
Increased opacity at the right lung base on the frontal view not definitely corroborated on the lateral may be due to atelectasis although infection or aspiration is not entirely excluded .