Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are bilateral interstitial opacities , greater at the lung bases , consistent with moderate pulmonary edema . The previously reported right upper lobe spiculated opacity is again noted and better evaluated on prior FDG tumor imaging study . Diffuse emphysematous changes are again noted throughout the lungs . The heart remains moderately enlarged . Mediastinal contours are stable .
    OUTPUT:
    
1 . Moderate pulmonary edema with moderate cardiomegaly . 2 . Right upper lobe spiculated opacity again noted and better delineated on prior FDG Tumor Imaging study .