Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Elevation of the right hemidiaphragm is unchanged . A left axillary vascular stent is again noted . The cardiac , mediastinal and hilar contours are normal . Lungs are clear . No pleural effusion or pneumothorax is present . No pneumomediastinum is identified . Speckled densities within the right upper quadrant of the abdomen likely reflects ingested contents within the colon .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Specifically , no pneumomediastinum identified .