Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are clear of consolidation , pleural effusion or pneumothorax . Heart size is normal . A right - sided aortic arch is an incidental finding . No subdiaphragmatic free air . Evaluation of the osseous structures reveals anterior osteophytes at multiple levels throughout the thoracic spine .
    OUTPUT:
    
1 . No pneumonia . 2 . Incidentally noted right aortic arch .