Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . There is no focal consolidation , pleural effusion or pneumothorax . Mild cardiomegaly is unchanged . Median sternotomy wires are intact after CABG . Hilar contours are normal .
    OUTPUT:
    
No pneumonia , edema , or effusion . No evidence of TB .