Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild cardiomegaly with calcification of the aortic knob and mitral annulus . The mediastinal and hilar contours are otherwise unremarkable . There is no pneumothorax or large pleural effusion . There is a large opacity in the right lower lung zone concerning for pneumonia . Mild pulmonary edema is also present .
    OUTPUT:
    
Findings suggesting right lower lobe pneumonia with superimposed mild pulmonary edema .