Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . Left - sided AICD device is noted with leads terminating in the right atrium and right ventricle . Heart size is mildly enlarged . The mediastinal and hilar contours are unchanged with mild tortuosity of the thoracic aorta again noted . There is atherosclerotic calcifications of the aortic knob . Patchy opacity within the right lung base is nonspecific but could reflect an area of atelectasis or infection . Minimal atelectasis is also noted within the left lower lobe . There is a trace right pleural effusion . No pulmonary edema or pneumothorax is present . There are mild degenerative changes in the thoracic spine .
    OUTPUT:
    
Patchy right basilar opacity is nonspecific , potentially atelectasis though infection is not completely excluded . Trace right pleural effusion . Minimal left basilar atelectasis .