Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Assessment is limited by patient rotation . Left - sided dual - chamber pacemaker device is noted with leads in unchanged positions in the right atrium and right ventricle . Mild to moderate cardiomegaly appears grossly unchanged . Atherosclerotic calcifications are noted diffusely within the thoracic aorta . There is mild pulmonary edema , perhaps minimally worse compared to the previous examination . No large pleural effusion or pneumothorax is present however the extreme right costophrenic angle is excluded from the field of view . Patchy opacity in the left lung base may reflect an area of atelectasis however infection can not be excluded .
    OUTPUT:
    
Limited exam with mild pulmonary edema , perhaps slightly worse in the interval . Patchy left basilar opacity may reflect atelectasis though infection is difficult to exclude .