Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is increased elevation of the left hemidiaphragm with probable superimposed atelectasis as compared to recent prior examination . No confluent consolidation is identified . There is no overt interstitial pulmonary edema or pleural effusions . Moderate cardiomegaly is unchanged from prior . The patient is status post CABG . Median sternotomy wires appear intact . Mediastinal and hilar contours are within normal limits .
    OUTPUT:
    
Interval increase in elevation of the left hemidiaphragm with probable superimposed atelectasis . No pneumonia , pulmonary edema or pleural effusions .