Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is mildly enlarged . The aorta is unfolded . Mediastinal and hilar contours are otherwise unremarkable . The pulmonary vasculature is not engorged . Elevation of the right hemidiaphragm is pronounced than on the prior study . There is increased atelectasis in the right lung base . No focal consolidation , pleural effusion or pneumothorax is present . There are moderate multilevel degenerative changes seen in the thoracic spine .
    OUTPUT:
    
Right basilar atelectasis . No additional acute cardiopulmonary abnormality identified .