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 contours are normal . The heart is mildly enlarged , and unchanged from the prior exam . Surgical clips are noted in the upper abdomen .
    OUTPUT:
    
No acute cardiopulmonary process ; specifically , no evidence of pneumonia .