Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate a normal cardiomediastinal silhouette and hyperinflated lungs . There is a small to moderate right pleural effusion . No appreciable pleural fluid is seen on the left . Diffusely increased opacity bilaterally likely reflects mild pulmonary edema . Slightly increased opacity in the right mid lung may reflect atelectasis related to the pleural effusion , but an infectious process can not be excluded . There is no appreciable pneumothorax . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
1 . Small to moderate right pleural effusion . Opacity of the right mid lung may reflect associated atelectasis , but an infectious process can not be excluded . 2 . Mild pulmonary edema .