Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without focal consolidation . No pulmonary edema . No pleural effusion or pneumothorax is seen . The cardiac silhouette is unremarkable . Widened mediastinum has improved since ___ . Symmetric extrapleural fat bilaterally . Previous left seventh rib fracture is noted
    OUTPUT:
    
No consolidation or acute cardiopulmonary process . Improved mediastinal widening compared to ___ . Previous left seventh rib fracture noted .