Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . Left - sided dual - chamber pacemaker is noted with leads terminating in the right atrium and right ventricle . There is mild enlargement of the cardiac silhouette which is stable . The aorta remains tortuous . There is mild pulmonary edema and a small right pleural effusion . Previously noted left pleural effusion is not clearly seen on the current study . Patchy ill - defined opacity in the right base persists and is likely due to atelectasis , though infection can not be excluded . There is no pneumothorax . No acute osseous abnormalities are present .
    OUTPUT:
    
Mild pulmonary edema with small right pleural effusion and right basilar opacification , possibly reflecting atelectasis , though infection is not excluded . Previously noted small left pleural effusion appears resolved .