Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided dual - chamber pacemaker is noted with leads terminating in the right atrium and right ventricle . Moderate enlargement of the cardiac silhouette with a left ventricular predominance is again seen . The aorta is tortuous and diffusely calcified . Mediastinal and hilar contours are otherwise unremarkable . Previous pattern of pulmonary edema has resolved . Minimal linear opacities in the lung bases likely reflect atelectasis . There has also been near complete resolution of the previously noted small bilateral pleural effusions . No pneumothorax is seen . There are multilevel degenerative changes in the thoracic spine with mild loss of height of a mid thoracic vertebral body anteriorly , which is unchanged .
    OUTPUT:
    
Minimal bilateral pleural effusions and bibasilar atelectasis . No evidence for congestive heart failure .