Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left pectoral pacemaker and its 2 leads are in unchanged positions . Coarse interstitial markings likely reflect interstitial lung disease . There is no lung consolidation or large pleural effusion . Moderate cardiomegaly is unchanged . A sternotomy wire is intact
    OUTPUT:
    
No radiographic evidence of pneumonia .