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 . The heart size is normal . The aorta remains tortuous and calcified . Again demonstrated are fibrotic changes within the right lung base which appear similar when compared to the prior radiograph . There is likely minimal atelectasis in the left lung base . No pulmonary edema , focal consolidation , pleural effusion , or pneumothorax is identified . There are no acute osseous abnormalities .
    OUTPUT:
    
No significant interval change from the prior study with continued right basilar fibrotic changes .