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 right ventricle , unchanged . The heart size is mildly enlarged with a left ventricular predominance . The mediastinal and hilar contours are unremarkable . There are streaky opacities in the lung bases , with mild blunting of the right costophrenic angle suggestive of a small pleural effusion . No pneumothorax is identified . There is no pulmonary vascular congestion . Clips are noted within the right upper quadrant of the abdomen . There are no acute osseous abnormalities .
    OUTPUT:
    
Bibasilar streaky opacities likely reflecting areas of atelectasis . Small right pleural effusion .