Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . A left - sided pacemaker device is noted with leads terminating in the right atrium and right ventricle , unchanged . Heart size is top normal . Atherosclerotic calcifications are noted at the aortic knob . Pulmonary vasculature is not engorged . Mediastinal and hilar contours are unremarkable . Lungs are clear without focal consolidation , pleural effusion , or pneumothorax , though assessment of the left apex is obscured by the chin patient 's chin and soft tissues projecting over this area . No acute osseous abnormality is identified .
    OUTPUT:
    
No acute cardiopulmonary abnormality .