Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Heart size remains moderately enlarged . Extensive tortuosity of the aorta is again noted . The mediastinal and hilar contours are unchanged . Pulmonary vasculature is normal . Linear and patchy opacities are noted in the right lung base , likely atelectasis . No focal consolidation , pleural effusion or pneumothorax is detected . No acute osseous abnormality is present . There is no subdiaphragmatic free air .
    OUTPUT:
    
Right basilar atelectasis . No acute cardiopulmonary abnormality otherwise noted .