Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The metal dental crown or filling in the right lower lobe bronchus is unchanged in position in comparison to the prior chest radiograph dated ___ . Developing right basilar opacification could be atelectasis , infection , or aspirated blood . The lungs are otherwise clear . Heart size is stable . The mediastinal and hilar contours are stable . The pulmonary vasculature is normal . No pleural effusion or pneumothorax is seen .
    OUTPUT:
    
1 . Dental crown or filling is still lodged in the right lower lobe bronchus 2 . Developing right basal atelectasis , pneumonia , or aspirated blood .