Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy . Heart size is mildly enlarged . The aorta is diffusely calcified and tortuous . There is mild cephalization of pulmonary vascular markings , likely due to supine positioning . No overt pulmonary edema is present . Minimal patchy opacities are seen in the lung bases , likely reflective of atelectasis . Pleural thickening is seen involving both apices . No large pneumothorax or pleural effusion is seen on this supine exam . No acute osseous abnormalities are detected .
    OUTPUT:
    
No acute cardiopulmonary abnormality .