Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are stable small bilateral pleural effusions as well as mild interstitial pulmonary edema , slightly worse than on ___ . There is a more dense heterogeneous opacity in the left lower lobe which partially obscures the left hemidiaphragmatic contour . There is no pneumothorax . Moderate cardiomegaly is unchanged . The thoracic aorta is tortuous . Again noted are multilevel degenerative changes of the thoracic spine .
    OUTPUT:
    
1 . Mild pulmonary edema with small bilateral pleural effusions consistent with congestive heart failure . 2 . More dense heterogeneous opacification of the left lower lobe may represent superimposed pneumonia in the appropriate clinical setting .