Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Assessment is slightly limited due to patient rotation . Heart size appears mildly enlarged but unchanged . The mediastinal and hilar contours are similar with tortuosity of the thoracic aorta again noted . Pulmonary vasculature is not engorged . Streaky opacity is seen in the retrocardiac region , possibly atelectasis though infection is not excluded . No pleural effusion or pneumothorax is demonstrated . Scarring within the lung apices is again noted with curvilinear calcification in the region of the subclavian arteries again visualized bilaterally . Assessment of the lung apices is somewhat obscured by the patient 's neck and chin projecting over this area . Multilevel degenerative changes are noted in the thoracic spine which demonstrates a leftward curvature . Remote left - sided rib fracture is noted .
    OUTPUT:
    
Slightly limited assessment due to patient rotation . Streaky retrocardiac opacity , possibly atelectasis though infection can not be excluded .