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 . Mild interstitial prominence is unchanged , and likely chronic . The mediastinal contours are normal . The cardiac silhouette is mildly enlarged .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Stable mild cardiomegaly .