Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly is unchanged . Thoracic aorta is generally tortuous and the ascending portion , either tortuous or dilated is unchanged since ___ . Lungs are clear . There is no pleural effusion or pneumothorax . There is a mild levoconvex scoliosis of the thoracic lumbar spine
    OUTPUT:
    
No evidence of pneumonia . Chronic mild cardiomegaly . Tortuous or dilated ascending thoracic aorta , although unchanged since ___ , should be evaluated clinically for possibility of aortic valvular abnormality or aneurysm .