Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and aortic valve replacement . Heart size is normal . The aorta is mildly tortuous and the known aneurysmal dilatation of the ascending aorta is better appreciated on the prior CT . Hilar contours are unremarkable . Pulmonary vasculature is normal . Lungs are hyperinflated with atelectasis noted at the lung bases . No focal consolidation , pleural effusion or pneumothorax is present . No acute osseous abnormality is detected .
    OUTPUT:
    
No acute cardiopulmonary abnormality .