Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiograph demonstrates stable mild cardiomegaly . The mediastinal and hilar contours are otherwise unremarkable . Minimal bibasilar atelectasis again identified . No focal opacification concerning for pneumonia identified . No pleural effusions or pneumothorax evident . Mild - to - moderate multilevel degenerative change identified throughout the thoracic spine .
    OUTPUT:
    
No acute intrathoracic process . Multilevel degenerative change identified throughout the thoracic spine .