Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is top normal with tortuosity of the thoracic aorta exaggerated by stable S - shaped scoliosis of the thoracic spine . Mediastinal silhouette and hilar contours are unremarkable and unchanged . Lungs are clear . There is no pleural effusion or pneumothorax . There is no evidence of pneumoperitoneum . The osseous structures are globally demineralized with moderate S - shaped scoliosis of the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary process . No evidence of pneumoperitoneum .