Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without consolidation or edema . There is no pleural effusion or pneumothorax . The mediastinal contour is normal . The heart is mildly enlarged with borderline redistribution of the pulmonary vessels , unchanged from the prior exam . Clips are noted projecting over the thyroid bed .
    OUTPUT:
    
Unchanged mild cardiomegaly . No acute cardiopulmonary process .