Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . There is no evidence of focal consolidation , pleural effusion , pneumothorax , or pulmonary edema . The ascending thoracic aorta is chronically tortuous and / or dilated , unchanged since ___ . The cardiomediastinal silhouette is otherwise within normal limits .
    OUTPUT:
    
Low lung volumes without evidence of acute cardiopulmonary process . Ascending thoracic aorta chronically dilated or tortuous , unchanged since ___ .