Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size remains mildly enlarged . Mediastinal and hilar contours are stable . There is no pulmonary vascular congestion . Minimal atelectasis is noted within the right middle lobe . Smooth bilateral pleural thickening is seen laterally , unchanged , likely reflecting subpleural fat deposition . No pleural effusion or pneumothorax is clearly identified . There are mild degenerative changes within the thoracic spine . No displaced rib fractures are noted .
    OUTPUT:
    
No displaced rib fractures seen . If there is continued clinical concern for a rib fracture , a dedicated rib series is recommended .