Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The lungs are well expanded and clear without focal consolidation , pleural effusion or pneumothorax . The cardiac silhouette is mildly enlarged . Mediastinal silhouette and hilar contours are normal . There is no free air under the diaphragm . No displaced rib fracture is seen .
    OUTPUT:
    
1 . The right lower lobe opacity on the subsequent CT is not well visualized on this radiograph . No edema , or effusion . 2 . Mild cardiomegaly