Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A stable opacity in the right upper lung medially is likely a combination of calcification in the cartilage of the first ribs and vascular prominence . Otherwise , there is again enlargement of the cardiac silhouette with a pacer device in place . Conspicuity of the interstitial markings and probable mild bronchial cuffing may represent incipient interstitial edema . There is no pleural effusion pneumothorax
    OUTPUT:
    
Stable cardiomegaly . Conspicuity of interstitial markings and probable mild bronchial cuffing may represent incipient interstitial edema .