Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are adequate with minimal basilar atelectasis . Mild pulmonary vascular congestion . No focal opacity . No pleural effusion or pneumothorax . Cardiomediastinal Send to is overall unchanged . Mild edema . Multiple contiguous , mildly displaced right ___ posterior rib fractures are again noted .
    OUTPUT:
    
Improved interval aeration of the lungs with persistent mild edema .