Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Increased retrocardiac opacity may reflect atelectasis . There is suggestion of mild peribronchiolar cuffing . No pleural effusion or pneumothorax . No evidence of rib fracture on this nondedicated exam . Anterior wedging of a lower thoracic vertebral body with approximately ___ % anterior loss of vertebral body height is new since ___ , however the age is indeterminate . Aortic knob calcifications have progressed since ___ . The heart is mildly enlarged . The mediastinum is not widened .
    OUTPUT:
    
1 . ___ % loss of anterior vertebral body height of a lower thoracic vertebral body , new since ___ , age indeterminate . Correlate with clinical assessment and focal exam findings given history of trauma . Consider dedicated imaging as needed . 2 . No evidence of rib fracture on this nondedicated exam . Consider dedicated rib films if focal exam findings point to possible rib fracture . 3 . Suggestion of mild peribronchiolar wall thickening which could be seen with bronchial inflammation , thought less likely to be edema .