Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are clear . There is no focal consolidation to suggest pneumonia . There is no pneumothorax . Trace left pleural effusion may be present . The heart is top normal in size with median sternotomy wires and changes from aortic valve replacement and possible CABG noted .
    OUTPUT:
    
No evidence of pneumonia . Tiny left pleural effusion . These findings were discussed with Dr . ___ by Dr . ___ at 11 : 25 on ___ by telephone .