Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and show mild bilateral interstitial opacities , unchanged . The cardiac silhouette is enlarged . The mediastinal silhouette is mildly widened , unchanged . The pleural surfaces and hilar contours are normal . No pleural effusion or pneumothorax is present . Sternal wires and multiple clips from CABG are noted unchanged .
    OUTPUT:
    
Unchanged mild cardiomegaly and prominent mediastinum . Interstitial abnormalities might not be acute or related to patients cardiac disease .