Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient has had prior median sternotomy . Sternotomy wires are intact and aligned . Moderate cardiomegaly despite the projection is stable . Diffuse airspace opacification of the left lung with associated volume loss is not appreciably changed since the study of 1 day prior . Retrocardiac airspace opacification is likely due to a combination of atelectasis and pleural effusion .
    OUTPUT:
    
No significant interval change .