Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided dual - chamber pacemaker is noted with leads terminating in the right atrium and right ventricle . Heart size is mildly enlarged . The aorta is tortuous and diffusely calcified . There is mild pulmonary edema . More focal opacity in the left lung base could reflect atelectasis but infection is not excluded . Probable trace bilateral pleural effusions are present . There is no pneumothorax . No acute osseous abnormalities are seen . Multiple clips are noted within the left upper quadrant of the abdomen .
    OUTPUT:
    
Mild congestive heart failure with probable trace bilateral pleural effusions . More focal opacity in the left lung base could reflect atelectasis but infection can not be excluded .