Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided pacemaker device is noted with leads terminating in the right atrium and right ventricle . Moderate enlargement of the cardiac silhouette is relatively unchanged compared to the previous exam . The aorta remains tortuous and diffusely calcified . There has been interval development of mild pulmonary edema with small bilateral pleural effusions , slightly increased in size on the right . Bibasilar atelectasis is noted . No pneumothorax is identified . Lung volumes are low . Mild multilevel degenerative changes are seen in the thoracic spine .
    OUTPUT:
    
Interval development of mild pulmonary edema and small bilateral pleural effusions , slightly increased in size on the right . Bibasilar atelectasis .