Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Large retrocardiac lucency is seen which may be due to a large hiatal hernia with adjacent right base atelectasis . Left basilar opacity is seen which is worrisome for pneumonia . The right base opacities may be due to atelectasis , although additional site of infection is not excluded . There is also likely pulmonary edema . Blunting of the costophrenic angles is seen and there may be pleural effusion . The cardiac silhouette is mildly enlarged . The aorta is calcified and tortuous . The bones are diffusely osteopenic .
    OUTPUT:
    
Left lower lung consolidation worrisome for pneumonia . Right base opacity may be due to atelectasis adjacent to a large hiatal hernia though additional focus of infection or aspiration is not excluded . Mild pulmonary edema . Difficult to exclude trace pleural effusions .