Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided pacemaker device is noted with leads terminating within the right atrium and right ventricle . The cardiac silhouette size is mildly enlarged . Mediastinal and hilar contours are unchanged . No focal consolidation is demonstrated . Small bilateral pleural effusions persist , slightly decreased compared to the previous exam . There is mild prominence of the pulmonary vascular interstitium but no overt pulmonary edema demonstrated . Linear opacities within the right lung base likely reflects atelectasis . There is no pneumothorax . No acute osseous abnormalities are demonstrated .
    OUTPUT:
    
Persistent small bilateral pleural effusions , but decreased compared to previous exam . Atelectasis within the right lung base . No overt pulmonary edema .