Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No definite focal consolidation is seen . There is no pleural effusion or pneumothorax . The cardiac silhouette is top - normal . The aortic knob is slightly prominent .
    OUTPUT:
    
No focal consolidation . Slightly prominent aortic knob may be due to tortuous aorta , however , chest CT would further assess for aortic dilatation .