Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An endovascular stent graft is seen within the descending thoracic aorta . The lungs are well expanded and clear . The cardiomediastinal silhouette is unremarkable . No pleural effusion , pulmonary edema or pneumothorax is present .
    OUTPUT:
    
No acute cardiopulmonary process . Normal heart size .