Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is top normal . The aorta remains mildly tortuous with atherosclerotic calcifications again noted at the aortic knob . The mediastinal hilar contours are otherwise unremarkable . Pulmonary vasculature is not engorged . Subsegmental atelectasis is noted in the right lung base . No focal consolidation , pleural effusion or pneumothorax is detected . No acute osseous abnormalities present . .
    OUTPUT:
    
No acute cardiopulmonary abnormality . ___ , MD