Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate hyperexpanded lungs without focal consolidation , pleural effusion or pneumothorax . The hilar and mediastinal silhouettes are unremarkable . Heart size is top normal . Chronic sternal fracture and compression deformities of multiple thoracic vertebral bodies appear longstanding . The hilar and mediastinal silhouettes are unchanged . Mild tortuosity of the descending aorta is noted . Heart size is normal .
    OUTPUT:
    
No acute intrathoracic process .