Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear . Right lower lobe opacity seen on previous CT is not well visualized on this radiograph . The pleural surfaces are normal without pleural effusion or pneumothorax . Mildly enlarged heart size and mild hilar prominence are unchanged from prior . Mediastinal contour is normal . Limited assessment of osseous structures are unremarkable .
    OUTPUT:
    
1 . No evidence of acute cardiopulmonary process . 2 . Right lower lobe opacity seen on previous CT is not well visualized on today 's radiograph .