Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy , CABG , and aortic valve replacement . There is evidence of coronary artery stenting . The heart size is mildly to moderately enlarged . The aortic knob is calcified . The mediastinal and hilar contours are unremarkable . There is cephalization of the pulmonary vascular markings with mild engorgement , suggestive of mild pulmonary vascular congestion . The lungs are hyperinflated with flattening of the diaphragms possibly due to underlying COPD . Small right pleural effusion is present . There is adjacent compressive atelectasis in the right lung base . No pneumothorax is identified . No acute osseous abnormalities seen .
    OUTPUT:
    
Mild pulmonary vascular congestion and small right pleural effusion .