Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are moderately well inflated . No pulmonary edema . Left basilar opacity is new . Stable trace right pleural effusion with interval increase in small left pleural effusion . Stable mild cardiomegaly . Mediastinal contour and hila are unremarkable . Intact median sternotomy wires are noted .
    OUTPUT:
    
1 . Increase in small left pleural effusion with left basilar opacity likely representing combination of compressive atelectasis and pleural fluid . Superimposed infection can not be excluded . 2 . Stable trace right pleural effusion . 3 . Stable mild cardiomegaly . 4 . No pulmonary edema .