Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided dual - chamber pacemaker device is noted with leads terminating in the right atrium and likely within the region of the right ventricle , however the inferior aspect of the left hemithorax is not included in the field of view . Moderate cardiomegaly persists . The mediastinal and hilar contours are similar . There is no pulmonary edema . Small to moderate size bilateral pleural effusions are demonstrated along with bibasilar airspace opacities which could reflect compressive atelectasis but infection or aspiration can not be completely excluded . No pneumothorax is detected . There are no acute osseous abnormalities .
    OUTPUT:
    
Small to moderate - sized bilateral pleural effusions with bibasilar patchy opacities , potentially compressive atelectasis , but infection or aspiration can not be excluded .