Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy . Heart size is normal . Honeycombing was demonstrated on the recent chest CT and is again evident at the lung bases . No focal opacities that are concerning for infection are present . There is no pleural effusion . The top median sternotomy wire is broken , unchanged from the prior exam .
    OUTPUT:
    
No convincing evidence of pneumonia .