Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Cardiomediastinal silhouette and hilar contours are unremarkable . Lungs are clear . There is no pleural effusion or pneumothorax . There is mild anterior reduction in height of the T11 vertebral body .
    OUTPUT:
    
No acute intrathoracic process . Mild reduction in anterior T11 vertebral body height of unclear chronicity .