Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low , and there is a right upper lobe opacity concerning for pneumonia . There is mild pulmonary edema . There is a left pleural effusion , and a left retrocardiac opacity is also noted . A left cardiac device has its leads projecting over the right atrium and ventricle .
    OUTPUT:
    
1 . Mild pulmonary edema and small left pleural effusion . Left retrocardiac opacity also noted . 2 . Right upper lobe opacity concerning for pneumonia .