Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without focal consolidation , pleural effusion or pneumothorax . A previously noted right lower lobe opacity is not seen and better assessed on the recent chest CT . There is no pulmonary edema . The heart is normal in size , and the mediastinal contours are normal . Air noted in the esophagus may reflect esophagitis .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Air in the esophagus may reflect esophagitis .