Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is diffuse dilation of the esophagus , with multiple clips at the inferior aspect . Left seventh posterior thoracotomy defect is noted . The lungs are clear . Cardiomediastinal and hilar contours are normal . There are no pleural effusions , pneumothorax , or pneumomediastinum . Cholecystectomy clips noted in the right upper quadrant .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Dilated esophagus and post-surgical changes .