Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild to moderate cardiomegaly is unchanged . Bibasilar atelectasis and a small left pleural effusion are also unchanged . Upper lungs remain clear . No pneumothorax , pulmonary edema , or new focal consolidation concerning for pneumonia . Unchanged left axillary pacemaker , with continuous leads in the right atrium and right ventricle .
    OUTPUT:
    
Unchanged bibasilar atelectasis and small left pleural effusion . No evidence of pneumonia .