Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . Heart size is top normal . The aortic knob is calcified . No pulmonary vascular congestion is present . Lungs appear hyperinflated with attenuation of the pulmonary vascular markings towards the apices reflective of emphysema . Streaky opacities in the lung bases likely indicates atelectasis . No pleural effusion or pneumothorax is visualized . There are no acute osseous abnormalities .
    OUTPUT:
    
Streaky opacities in the lung bases likely reflective of atelectasis . Emphysema .