Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . The lungs are hyperinflated compatible with known emphysema . There is an irregular appearance of the left pulmonary hilum which reflects the presence of a known primary malignancy . There is a focus of scarring in the left upper lung which appears essentially stable . No new consolidation , effusion , or pneumothorax is seen . The overall cardiomediastinal silhouette is unchanged . No definite bony abnormalities are detected . Clips are noted in the right upper abdomen .
    OUTPUT:
    
Emphysema with left hilar irregular opacity compatible with known malignancy . No superimposed pneumonia or other acute process .