Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . Heart size is top normal and unchanged . Mediastinal and hilar contours are normal . No evidence of pulmonary edema . No evidence of pneumonia . No pleural effusion or pneumothorax . Patient is post-CABG with sternotomy wires and mediastinal clips in appropriate position .
    OUTPUT:
    
No evidence of pneumonia .