Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The aorta is tortuous and dilated , particularly the ascending portion in the arch , and considerably more so than in ___ , worrisome for aneurysm . The lungs appear clear . The heart is at the upper limits of normal size . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
1 . No evidence of acute disease . 2 . Increasing aortic dilatation . When clinically appropriate evaluation with chest CT including CT angiography is recommended to evaluate further .