Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No change since ___ , with a moderately calcified aortic arch , mild cardiomegaly , and a tortuous descending thoracic aorta . No pleural effusion or pneumothorax . No pneumonia . Mild scoliosis of the thoracic spine . Osseous structures are diffusely demineralized .
    OUTPUT:
    
No pneumonia . No change since ___ .