Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient has had prior median sternotomy and CABG . Mild pulmonary vascular congestion has developed since the prior examination with peribronchial cuffing and fluid along the minor fissure . Mild cardiomegaly . Previously described ill - defined airspace opacity in the right lower lobe has improved . No significant pleural effusions or pneumothorax .
    OUTPUT:
    
New mild interstitial pulmonary edema .