Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without consolidation or edema . Mild aortic tortuosity is again noted . The cardiac silhouette is within normal limits for size . No effusion or pneumothorax is noted . Minimal pleural thickening is noted at the inferior right hemithorax similar to the prior exam . The visualized osseous structures are unremarkable without demonstrable displaced rib fracture evident .
    OUTPUT:
    
Stable chest x-ray examination with no acute pulmonary process . No displaced rib fractures visualized .