Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate enlargement of the cardiac silhouette is present . The aorta is tortuous with atherosclerotic calcifications noted at the knob . There is likely a moderate - sized hiatal hernia . Hilar contours are normal . No pulmonary edema seen . Linear and streaky opacities in the lung bases likely reflect areas of atelectasis . Lungs are hyperinflated with relative attenuation of pulmonary vascular markings towards the apices suggestive of emphysema . No focal consolidation or pneumothorax is duct identified . Moderate degenerative changes are noted in the thoracic spine .
    OUTPUT:
    
Streaky bibasilar atelectasis without focal consolidation . Emphysema and probable moderate size hiatal hernia .