Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The aorta is mildly tortuous but unchanged . There are minimal atherosclerotic calcifications of the aortic arch . Mediastinal and hilar contours are otherwise normal . Pulmonary vasculature is normal . There is minimal atelectasis within the right lower lobe . No focal consolidation , pleural effusion or pneumothorax is seen . Partially imaged is posterior fusion hardware within the lower thoracic and upper lumbar spine .
    OUTPUT:
    
Right lower lobe atelectasis . Otherwise no acute cardiopulmonary abnormality .