Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no residual pneumomediastinum , pneumopericardium , or pneumothorax . Left lower neck residual subcutaneous air has decreased . The lungs are clear . Mediastinal and cardiac contours are normal . There is no pleural effusion .
    OUTPUT:
    
There is no residual pneumopericardium , pneumomediastinum , or pneumothorax . Small left lower neck subcutaneous air has decreased .