Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no focal airspace consolidation . No pneumothorax or pleural effusion is seen . Heart size is normal . No obvious , displaced rib fracture is noted and a right old rib fracture is seen . In the right lower lung there is a rounded hazy opacity which is not fully characterized on this study .
    OUTPUT:
    
1 . No acute process . 2 . Rounded , hazy opacity in the right lower lung is not fully characterized on this study . Comparison to prior films or follow up non-urgent high - resolution chest CT is recommended .