Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The aorta demonstrates calcifications predominantly at the aortic knob . Hilar contours are normal . Slight widening of the superior mediastinum may be due to supine positioning and AP technique . There is a focal calcification in the right lung base , likely reflecting a granuloma . Minimal atelectasis is noted in the left lung base . No focal consolidation is seen . There is no large pleural effusion or pneumothorax identified . No displaced rib fractures are noted . Widening of the right acromioclavicular joint likely reflects prior trauma .
    OUTPUT:
    
No acute intrathoracic traumatic injury .