Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Well expanded lungs . Inferior to the right hilum an opacity is identified . No pleural effusion pneumothorax . No pneumopericardium . Heart size , mediastinal contour , and hila are unremarkable . Visualized upper abdomen is within normal limits . No displaced rib fracture .
    OUTPUT:
    
Right hilar opacity . Consider shallow oblique views for further clarification .